Academic Calendar

OU Academic Calendar 2026‑2027: Important Dates & Deadlines

By eriq elikplim
OU Academic Calendar, Important Dates.

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The OU Academic Calendar 2026‑2027 is your essential roadmap for every key date and deadline from OU enrollment and registration windows, tuition payment due dates, and course add/drop periods to campus holidays and final exam schedules.

The University of Oklahoma academic calendar helps Sooners lock in OU term dates, navigate the OU exam schedule, track OU registration deadlines, and never miss the last day to withdraw without a “W”, ensuring seamless academic and financial planning at OU.

OU operates on a traditional semester system with flexible summer sessions:

  • Fall Semester: A full 15‑week term (14 instructional weeks + one finals week), kicking off in late August and wrapping up in early December.
  • Spring Semester: Mirrors Fall with 15 weeks of instruction plus finals, beginning after Martin Luther King Jr. Day and concluding in early May.
  • Summer Sessions: Choose from Session I (6 weeks), Full Summer Session (12 weeks), or Session II (6 weeks).

Keep the OU Academic Calendar 2026‑2027 front and center so you can focus on thriving both in the classroom and across the Norman campus.

OU Academic Calendar Fall 2026

  1. The cancellation deadline for complete withdrawal with no record of grade on the transcript is Sunday, August 23, 2026, for the Full Semester and First Half.
  2. The Full Semester for Fall 2026 runs from Monday, August 24, 2026, to Friday, December 18, 2026.
  3. The First Half of the semester runs from Monday, August 24, 2026, to Friday, October 16, 2026.
  4. Classes begin on Monday, August 24, 2026, for the Full Semester and First Half.
  5. The first day for a late registration fee of $20.00 is Monday, August 24, 2026, for the Full Semester and First Half.
  6. The add/drop period with a 100% reduction of charges on dropped courses begins on Monday, August 24, 2026, for the Full Semester and First Half.
  7. The period for a 100% reduction of charges on complete withdrawals begins on Monday, August 24, 2026, for the Full Semester and First Half.
  8. The automatic grade of W on complete withdrawal for undergraduate students applies starting Monday, August 24, 2026, for the Full Semester and First Half.
  9. The automatic grade of W on complete withdrawal for graduate students applies starting Monday, August 24, 2026, for the Full Semester and First Half.
  10. The final day to register without permission of the instructor is Wednesday, August 26, 2026, for the First Half.
  11. The final day to add a class without permission of the instructor is Wednesday, August 26, 2026, for the First Half.
  12. The add/drop period with a 100% reduction of charges on dropped courses ends on Friday, August 28, 2026, for the First Half.
  13. There is no reduction of charges on dropped courses after Friday, August 28, 2026, for the First Half.
  14. The final day to register without permission of the instructor is Friday, August 28, 2026, for the Full Semester.
  15. The final day to add a class without permission of the instructor is Friday, August 28, 2026, for the Full Semester.
  16. The add/drop period with a 100% reduction of charges on dropped courses ends on Friday, September 4, 2026, for the Full Semester.
  17. There is no reduction of charges on dropped courses after Friday, September 4, 2026, for the Full Semester.
  18. The final day to change from audit to credit is Friday, September 4, 2026, for the Full Semester.
  19. The final day for undergraduate students to change from credit to audit is Friday, September 4, 2026, for the Full Semester.
  20. The final day to apply for the Doctoral General Examination and submit a request for a degree check for thesis/doctoral students is Friday, September 4, 2026.
  21. The automatic grade of W for dropped courses for undergraduate students begins on Saturday, September 5, 2026, for the Full Semester.
  22. The automatic grade of W for dropped courses for graduate students begins on Saturday, September 5, 2026, for the Full Semester.
  23. The automatic grade of W for dropped courses for undergraduate students begins on Saturday, August 29, 2026, for the First Half.
  24. The automatic grade of W for dropped courses for graduate students begins on Saturday, August 29, 2026, for the First Half.
  25. Labor Day is observed on Monday, September 7, 2026.
  26. The automatic grade of W for dropped courses for graduate students ends on Friday, September 25, 2026, for the First Half.
  27. The final day for graduate students to change from credit to audit is Friday, September 25, 2026, for the First Half.
  28. The petition period to the College Dean to drop courses for graduate students begins on Saturday, September 26, 2026, for the First Half.
  29. The grade of W or F on complete withdrawal for graduate students, assigned by the instructor, begins on Saturday, September 26, 2026, for the First Half.
  30. The petition period to the College Dean to drop courses for undergraduate students begins on Saturday, October 3, 2026, for the First Half.
  31. The Second Half of the semester runs from Monday, October 19, 2026, to Friday, December 18, 2026.
  32. Classes begin on Monday, October 19, 2026, for the Second Half.
  33. The first day for a late registration fee of $20.00 is Monday, October 19, 2026, for the Second Half.
  34. The add/drop period with a 100% reduction of charges on dropped courses begins on Monday, October 19, 2026, for the Second Half.
  35. The period for a 100% reduction of charges on complete withdrawals begins on Monday, October 19, 2026, for the Second Half.
  36. The automatic grade of W on complete withdrawal for undergraduate students applies starting Monday, October 19, 2026, for the Second Half.
  37. The automatic grade of W on complete withdrawal for graduate students applies starting Monday, October 19, 2026, for the Second Half.
  38. The cancellation deadline for complete withdrawal with no record of grade on the transcript is Sunday, October 18, 2026, for the Second Half.
  39. The final day of classes is Friday, October 16, 2026, for the First Half.
  40. The petition period to the College Dean to drop courses for undergraduate students ends on Friday, October 16, 2026, for the First Half.
  41. The petition period to the College Dean to drop courses for graduate students ends on Friday, October 16, 2026, for the First Half.
  42. The grade of W or F on complete withdrawal for graduate students, assigned by the instructor, ends on Friday, October 16, 2026, for the First Half.
  43. Final grades are due on Tuesday, October 20, 2026, for the First Half.
  44. The add/drop period with a 100% reduction of charges on dropped courses ends on Friday, October 23, 2026, for the Second Half.
  45. There is no reduction of charges on dropped courses after Friday, October 23, 2026, for the Second Half.
  46. The final day to change from audit to credit is Friday, October 23, 2026, for the Second Half.
  47. The final day for undergraduate students to change from credit to audit is Friday, October 23, 2026, for the Second Half.
  48. The final day to register without permission of the instructor is Wednesday, October 21, 2026, for the Second Half.
  49. The final day to add a class without permission of the instructor is Wednesday, October 21, 2026, for the Second Half.
  50. The automatic grade of W for dropped courses for undergraduate students ends on Friday, October 2, 2026, for the First Half.
  51. The automatic grade of W for dropped courses for undergraduate students begins on Saturday, October 24, 2026, for the Second Half.
  52. The automatic grade of W for dropped courses for graduate students begins on Saturday, October 24, 2026, for the Second Half.
  53. The petition period to the College Dean to drop courses for graduate students begins on Saturday, October 31, 2026, for the Full Semester.
  54. The grade of W or F on complete withdrawal for graduate students, assigned by the instructor, begins on Saturday, October 31, 2026, for the Full Semester.
  55. The automatic grade of W for dropped courses for graduate students ends on Friday, October 30, 2026, for the Full Semester.
  56. The final day for graduate students to change from credit to audit is Friday, October 30, 2026, for the Full Semester.
  57. The automatic grade of W on complete withdrawal for graduate students ends on Friday, October 30, 2026, for the Full Semester.
  58. Thanksgiving Vacation occurs from Wednesday, November 25, 2026, to Sunday, November 29, 2026.
  59. The automatic grade of W for dropped courses for undergraduate students ends on Friday, November 13, 2026, for the Full Semester.
  60. The petition period to the College Dean to drop courses for undergraduate students begins on Saturday, November 14, 2026, for the Full Semester.
  61. The final day to submit the Report of Reading Copy Submission and Request for Authority to Defend for thesis/doctoral students is Friday, November 20, 2026.
  62. The automatic grade of W for dropped courses for graduate students ends on Friday, November 20, 2026, for the Second Half.
  63. The final day for graduate students to change from credit to audit is Friday, November 20, 2026, for the Second Half.
  64. The automatic grade of W on complete withdrawal for graduate students ends on Friday, November 20, 2026, for the Second Half.
  65. The petition period to the College Dean to drop courses for graduate students begins on Saturday, November 21, 2026, for the Second Half.
  66. The grade of W or F on complete withdrawal for graduate students, assigned by the instructor, begins on Saturday, November 21, 2026, for the Second Half.
  67. The final day for Thesis/Dissertation Defense is Friday, November 27, 2026.
  68. The automatic grade of W for dropped courses for undergraduate students ends on Friday, November 27, 2026, for the Second Half.
  69. The petition period to the College Dean to drop courses for undergraduate students begins on Saturday, November 28, 2026, for the Second Half.
  70. The final day to complete the Doctoral General Examination, submit the Approval for Thesis/Dissertation Submission form, and complete the Non-Thesis Exam is Friday, December 4, 2026.
  71. The final day to submit the Thesis/Dissertation to the electronic repository is Friday, December 4, 2026.
  72. The final day of classes is Friday, December 11, 2026, for the Full Semester.
  73. Final examinations for the Full Semester are held from Monday, December 14, 2026, to Friday, December 18, 2026.
  74. The petition period to the College Dean to drop courses for undergraduate students ends on Friday, December 18, 2026, for the Full Semester and Second Half.
  75. The petition period to the College Dean to drop courses for graduate students ends on Friday, December 18, 2026, for the Full Semester and Second Half.
  76. The grade of W or F on complete withdrawal for graduate students, assigned by the instructor, ends on Friday, December 18, 2026, for the Full Semester and Second Half.
  77. The final day of classes is Friday, December 18, 2026, for the Second Half.
  78. The final day to complete work needed for graduation is Friday, December 18, 2026.
  79. The cancellation deadline for complete withdrawal with no record of grade on the transcript is Sunday, December 20, 2026, for the Winter Session.
  80. The Winter Session runs from Monday, December 21, 2026, to Friday, January 15, 2027.
  81. Classes begin on Monday, December 21, 2026, for the Winter Session.
  82. The first day for a late registration fee of $20.00 is Monday, December 21, 2026, for the Winter Session.
  83. The add/drop period with a 100% reduction of charges on dropped courses begins on Monday, December 21, 2026, for the Winter Session.
  84. The period for a 100% reduction of charges on complete withdrawals begins on Monday, December 21, 2026, for the Winter Session.
  85. The automatic grade of W on complete withdrawal for undergraduate students applies starting Monday, December 21, 2026, for the Winter Session.
  86. The automatic grade of W on complete withdrawal for graduate students applies starting Monday, December 21, 2026, for the Winter Session.
  87. The add/drop period with a 100% reduction of charges on dropped courses ends on Tuesday, December 22, 2026, for the Winter Session.
  88. There is no reduction of charges on dropped courses after Tuesday, December 22, 2026, for the Winter Session.
  89. The final day to register without permission of the instructor is Tuesday, December 22, 2026, for the Winter Session.
  90. The final day to add a class without permission of the instructor is Tuesday, December 22, 2026, for the Winter Session.
  91. The final day to change from audit to credit is Tuesday, December 22, 2026, for the Winter Session.
  92. The final day for undergraduate students to change from credit to audit is Tuesday, December 22, 2026, for the Winter Session.
  93. Final grades are due on Tuesday, December 22, 2026, for the Full Semester and Second Half.
  94. Christmas Day is observed on Friday, December 25, 2026.
  95. New Year’s Day is observed on Friday, January 1, 2027.
  96. The automatic grade of W for dropped courses for graduate students ends on Wednesday, January 6, 2027, for the Winter Session.
  97. The final day for graduate students to change from credit to audit is Wednesday, January 6, 2027, for the Winter Session.
  98. The automatic grade of W on complete withdrawal for graduate students ends on Wednesday, January 6, 2027, for the Winter Session.
  99. The petition period to the College Dean to drop courses for graduate students begins on Thursday, January 7, 2027, for the Winter Session.
  100. The grade of W or F on complete withdrawal for graduate students, assigned by the instructor, begins on Thursday, January 7, 2027, for the Winter Session.
  101. The automatic grade of W for dropped courses for undergraduate students ends on Friday, January 8, 2027, for the Winter Session.
  102. The petition period to the College Dean to drop courses for undergraduate students begins on Friday, January 9, 2027, for the Winter Session.
  103. The final day of classes is Friday, January 15, 2027, for the Winter Session.
  104. The petition period to the College Dean to drop courses for undergraduate students ends on Friday, January 15, 2027, for the Winter Session.
  105. The petition period to the College Dean to drop courses for graduate students ends on Friday, January 15, 2027, for the Winter Session.
  106. The grade of W or F on complete withdrawal for graduate students, assigned by the instructor, ends on Friday, January 15, 2027, for the Winter Session.
  107. The final day to submit work needed, such as transfer work, for graduation to Academic Records is Friday, January 15, 2027.
  108. Final grades are due on Tuesday, January 19, 2027, for the Winter Session.
  109. The final day to submit a request to graduate for Master’s students and Graduate Certificate students is Thursday, April 1, 2027.
  110. The final day to submit the Master Thesis Topic and Committee Membership form to the Graduate College is Thursday, April 1, 2027.
  111. The final day to file a graduation application is Sunday, May 1, 2027.

OU Academic Calendar Spring 2027

  1. The cancellation deadline for complete withdrawal with no record of grade on the transcript is Sunday, January 18, 2027, for the Full Semester and First Half.
  2. Martin Luther King Holiday is observed on Monday, January 18, 2027.
  3. The Full Semester for Spring 2027 runs from Tuesday, January 19, 2027, to Friday, May 14, 2027.
  4. The First Half of the semester runs from Tuesday, January 19, 2027, to Friday, March 12, 2027.
  5. Classes begin on Tuesday, January 19, 2027, for the Full Semester and First Half.
  6. The first day for a late registration fee of $20.00 is Tuesday, January 19, 2027, for the Full Semester and First Half.
  7. The add/drop period with a 100% reduction of charges on dropped courses begins on Tuesday, January 19, 2027, for the Full Semester and First Half.
  8. The period for a 100% reduction of charges on complete withdrawals begins on Tuesday, January 19, 2027, for the Full Semester and First Half.
  9. The automatic grade of W on complete withdrawal for undergraduate students applies starting Tuesday, January 19, 2027, for the Full Semester and First Half.
  10. The automatic grade of W on complete withdrawal for graduate students applies starting Tuesday, January 19, 2027, for the Full Semester and First Half.
  11. The final day to register without permission of the instructor is Thursday, January 21, 2027, for the First Half.
  12. The final day to add a class without permission of the instructor is Thursday, January 21, 2027, for the First Half.
  13. The final day to register without permission of the instructor is Friday, January 22, 2027, for the Full Semester.
  14. The final day to add a class without permission of the instructor is Friday, January 22, 2027, for the Full Semester.
  15. The add/drop period with a 100% reduction of charges on dropped courses ends on Monday, January 25, 2027, for the First Half.
  16. There is no reduction of charges on dropped courses after Monday, January 25, 2027, for the First Half.
  17. The final day to change from audit to credit is Monday, January 25, 2027, for the First Half.
  18. The final day for undergraduate students to change from credit to audit is Monday, January 25, 2027, for the First Half.
  19. The automatic grade of W for dropped courses for undergraduate students begins on Tuesday, January 26, 2027, for the First Half.
  20. The automatic grade of W for dropped courses for graduate students begins on Tuesday, January 26, 2027, for the First Half.
  21. The final day to change from audit to credit is Friday, January 29, 2027, for the Full Semester.
  22. The final day for undergraduate students to change from credit to audit is Friday, January 29, 2027, for the Full Semester.
  23. The final day to apply for the Doctoral General Examination and submit a request for a degree check for thesis/doctoral students is Saturday, January 30, 2027.
  24. The add/drop period with a 100% reduction of charges on dropped courses ends on Monday, February 1, 2027, for the Full Semester.
  25. There is no reduction of charges on dropped courses after Monday, February 1, 2027, for the Full Semester.
  26. The automatic grade of W for dropped courses for undergraduate students begins on Tuesday, February 2, 2027, for the Full Semester.
  27. The automatic grade of W for dropped courses for graduate students begins on Tuesday, February 2, 2027, for the Full Semester.
  28. The automatic grade of W for dropped courses for undergraduate students ends on Friday, February 26, 2027, for the First Half.
  29. The automatic grade of W for dropped courses for graduate students ends on Friday, February 19, 2027, for the First Half.
  30. The final day for graduate students to change from credit to audit is Friday, February 19, 2027, for the First Half.
  31. The automatic grade of W on complete withdrawal for graduate students ends on Friday, February 19, 2027, for the First Half.
  32. The petition period to the College Dean to drop courses for graduate students begins on Saturday, February 20, 2027, for the First Half.
  33. The grade of W or F on complete withdrawal for graduate students, assigned by the instructor, begins on Saturday, February 20, 2027, for the First Half.
  34. The petition period to the College Dean to drop courses for undergraduate students begins on Saturday, February 27, 2027, for the First Half.
  35. OU Spring Break 2027 is from Monday, March 15, 2027, to Friday, March 19, 2027.
  36. The Second Half of the semester runs from Monday, March 22, 2027, to Friday, May 14, 2027.
  37. Classes begin on Monday, March 22, 2027, for the Second Half.
  38. The first day for a late registration fee of $20.00 is Monday, March 22, 2027, for the Second Half.
  39. The add/drop period with a 100% reduction of charges on dropped courses begins on Monday, March 22, 2027, for the Second Half.
  40. The period for a 100% reduction of charges on complete withdrawals begins on Monday, March 22, 2027, for the Second Half.
  41. The automatic grade of W on complete withdrawal for undergraduate students applies starting Monday, March 22, 2027, for the Second Half.
  42. The automatic grade of W on complete withdrawal for graduate students applies starting Monday, March 22, 2027, for the Second Half.
  43. The cancellation deadline for complete withdrawal with no record of grade on the transcript is Sunday, March 21, 2027, for the Second Half.
  44. The final day of classes is Friday, March 12, 2027, for the First Half.
  45. The petition period to the College Dean to drop courses for undergraduate students ends on Friday, March 12, 2027, for the First Half.
  46. The petition period to the College Dean to drop courses for graduate students ends on Friday, March 12, 2027, for the First Half.
  47. The grade of W or F on complete withdrawal for graduate students, assigned by the instructor, ends on Friday, March 12, 2027, for the First Half.
  48. Final grades are due on Tuesday, March 16, 2027, for the First Half.
  49. The add/drop period with a 100% reduction of charges on dropped courses ends on Friday, March 26, 2027, for the Second Half.
  50. There is no reduction of charges on dropped courses after Friday, March 26, 2027, for the Second Half.
  51. The final day to change from audit to credit is Friday, March 26, 2027, for the Second Half.
  52. The final day for undergraduate students to change from credit to audit is Friday, March 26, 2027, for the Second Half.
  53. The final day to register without permission of the instructor is Wednesday, March 24, 2027, for the Second Half.
  54. The final day to add a class without permission of the instructor is Wednesday, March 24, 2027, for the Second Half.
  55. The automatic grade of W for dropped courses for undergraduate students begins on Saturday, March 27, 2027, for the Second Half.
  56. The automatic grade of W for dropped courses for graduate students begins on Saturday, March 27, 2027, for the Second Half.
  57. The automatic grade of W for dropped courses for graduate students ends on Friday, April 2, 2027, for the Full Semester.
  58. The final day for graduate students to change from credit to audit is Friday, April 2, 2027, for the Full Semester.
  59. The automatic grade of W on complete withdrawal for graduate students ends on Friday, April 2, 2027, for the Full Semester.
  60. The petition period to the College Dean to drop courses for graduate students begins on Saturday, April 3, 2027, for the Full Semester.
  61. The grade of W or F on complete withdrawal for graduate students, assigned by the instructor, begins on Saturday, April 3, 2027, for the Full Semester.
  62. The automatic grade of W for dropped courses for undergraduate students ends on Friday, April 16, 2027, for the Full Semester.
  63. The final day to submit the Report of Reading Copy Submission and Request for Authority to Defend for thesis/doctoral students is Friday, April 16, 2027.
  64. The automatic grade of W for dropped courses for graduate students ends on Friday, April 23, 2027, for the Second Half.
  65. The final day for graduate students to change from credit to audit is Friday, April 23, 2027, for the Second Half.
  66. The automatic grade of W on complete withdrawal for graduate students ends on Friday, April 23, 2027, for the Second Half.
  67. The petition period to the College Dean to drop courses for graduate students begins on Saturday, April 24, 2027, for the Second Half.
  68. The grade of W or F on complete withdrawal for graduate students, assigned by the instructor, begins on Saturday, April 24, 2027, for the Second Half.
  69. The final day for Thesis/Dissertation Defense is Friday, April 30, 2027.
  70. The automatic grade of W for dropped courses for undergraduate students ends on Friday, April 30, 2027, for the Second Half.
  71. The petition period to the College Dean to drop courses for undergraduate students begins on Saturday, May 1, 2027, for the Second Half.
  72. The final day to complete the Doctoral General Examination, submit the Approval for Thesis/Dissertation Submission form, complete the Non-Thesis Exam, and submit the Thesis/Dissertation to the electronic repository is Friday, May 7, 2027.
  73. Final examinations for the Full Semester are held from Monday, May 10, 2027, to Friday, May 14, 2027.
  74. The petition period to the College Dean to drop courses for undergraduate students ends on Friday, May 14, 2027, for the Full Semester and Second Half.
  75. The petition period to the College Dean to drop courses for graduate students ends on Friday, May 14, 2027, for the Full Semester and Second Half.
  76. The grade of W or F on complete withdrawal for graduate students, assigned by the instructor, ends on Friday, May 14, 2027, for the Full Semester and Second Half.
  77. The final day of classes is Friday, May 14, 2027, for the Full Semester and Second Half.
  78. The final day to complete work needed for graduation is Friday, May 14, 2027.
  79. The final day to submit work needed, such as transfer work, for graduation to Academic Records is Friday, May 14, 2027.
  80. Final grades are due on Tuesday, May 18, 2027, for the Full Semester and Second Half.
  81. The final day to submit a request to graduate for Master’s students and Graduate Certificate students, as well as the final day to submit the Master’s Thesis Topic and Committee Membership form to the Graduate College, is Friday, October 1, 2027.
  82. The final day to file a graduation application is Wednesday, December 1, 2027.

For more on the OU Academic Calendar 2026-2027, visit the University of Oklahoma Calendar website.

eriq elikplim
eriq elikplimhttps://acadcalendar.com
Eric Elikplim is the lead editor of AcadCalendar.com. Eriq draws on 10 years of experience in edtech and project management. He has collaborated directly with multiple universities, establishing processes to cross-check term dates, registration deadlines, and exam schedules. Beyond calendar data, Eriq contributes thought leadership on academic productivity: he has authored articles on semester planning, and consulted with student organizations to refine reminder features and user experience.

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