| Subject Name | Terms |
|---|---|
| Obstetrics & Gynecology (OB) | Fall2026 |
| Obstetrics & Gynecology (OBSG) | Fall2026 |
| Occupational Therapy | Summer2026 |
| Old Irish | Fall2026 |
| Oncology | Fall2026 |
| ONLINE MS IN EPIDEMIOLOGY | Summer2026 |
| Op Research - Computer Science | Fall2026 |
| Operation Research: CS-AM | Summer2026, Fall2026 |
| Operative Dentistry | Fall2026 |
| Ophthalmology | Fall2026 |
| Ophthalmology (OPHT) | Fall2026 |
| Oral Biology | Fall2026 |
| Oral History (OHMA) | Fall2026 |
| Oral Science | Fall2026 |
| Oral Surgery | Fall2026 |
| Orthodontics | Fall2026 |
| Orthopedic Surgery | Fall2026 |
| Orthopedic Surgery (ORTS) | Fall2026 |
| Otolaryngology | Fall2026 |
| Otolaryngology (OTOL) | Fall2026 |