The Senate of the Olabisi Onabanjo University (OOU) has approved the undergraduate students academic calendar for the 2019/2020 academic session. The breakdown of the OOU academic calendar for 2019/2020 academic session is as shown below;
OOU Academic Calendar Schedule for 2019/2020 Academic Session
| EVENT | DATE | NUMBER OF WEEKS |
| Resumption for 2019/2020 Session for Fresh Students/ Commencement of Registration | Wednesday, 2nd October, 2019 | |
| Resumption for 2019/2020 Session for Returning Students/ Commencement of Registration | Monday, 7th October, 2019 | |
| Commencement of Lectures for all Students | Monday, 14th October, 2019 | |
| Deadline for payments of Fees/End of Registration for All Students | Friday, 25th October, 2019 | 2 weeks |
| Orientation Activities for Fresh Students in the University/Colleges/Faculties/Departments | Monday 9th December – Friday, 13th December, 2019 | 1Week |
| Matriculation for Fresh Students | Wednesday, 18th December, 2019 | |
| December Break | Monday 23rd December 2019 - Tuesday 2nd January, 2020 | |
| End of Lectures for Harmattan Semester | Friday, 24th January, 2020 | 13 Weeks |
| Revision Week for Harmattan Semester | Monday, 27th January – Friday 31st January, 2020 | 1Week |
| CONVOCATION CEREMONY | Monday 27th January - Friday 31st January, 2020 | 1 Week |
| Harmattan Semester Examinations | Monday 3rd February – Friday 21st February, 2020 | 3 Weeks |
| Marking/Processing of Results/Senate Consideration of Harmattan Semester Results | Monday, 24th February – Friday, 6th March 2020 | 2 Weeks |
| Harmattan Semester Break | Monday 9th March - Friday 13th March 2020 | 1Week |
| Commencement of Lectures for Rain Semester | Monday, 16th March 2020 | |
| End of Lectures for Rain Semester | Friday, 12th June, 2020 | 13 Weeks |
| Revision Week for Rain Semester | Monday 15th June - Friday 19th June 2020 | 1Week |
| Rain Semester Examinations | Monday, 22nd June - Friday, 10th July, 2020 | 3 Weeks |
| Marking/Processing of Results/ Senate Consideration of Rain Semester Results | Monday 13th July - Friday, 24th July 2020 | 2 Weeks |
| End of Session Break | Monday 27th July 2020 | 2 Weeks |
| Resumption for Fresh Students for 2020/2021 Academic Session | Friday 2nd October, 2019 |
