O
- Obstetrics, Gynecology and Women's Health
- Occupational Therapy
- Off-Campus Student Services
- Office of Accessibility and ADA
- Office of Animal Resources (OAR)
- Office of Institutional Equity
- Office of Social and Economic Data Analysis (OSEDA)
- Online degrees and certificates
- Online Writery
- Operations
- Opthalmology
- Oral Tradition, Center for Studies in
- Organization Resource Group (ORG)
- Organizations, Student
- Orientation (new students)
- Orthopaedic Surgery
- Otolaryngology – Head and Neck Surgery