| Name | Department | Telephone |
| O' Sullivan, Angela (Professor) | School of Allied Health Sciences | +44 (0)116 207 8821 |
| Obey Gm, Priscilla (Mrs) | School of Leadership, Management and Marketing | N/A |
| Ochieng, Bertha (Professor) | School of Nursing and Midwifery | +44 (01)116 2078973 |
| O'Connor, Stuart (Dr) | School of Computer Science and Informatics | +44 (0) 116 207 8460 |
| Odumosu, Emmanuel Oluwaseun (Mr) | Leicester Castle Business School | N/A |
| Ogman, Robert () | Faculty of Business and Law | N/A |
| Ogunbiyi, Victor O. (Dr) | School of Leadership, Management and Marketing | 0116 207 8250 |
| Ogundare, Emmanuel (Mr) | School of Accounting, Finance and Economics | 0116 250 6324 |
| Ogunmokun, Olapeju Comfort (Dr) | School of Leadership, Management and Marketing | +44(0)1163664529 |
| Ogunnusi, Michael (Dr) | School of Applied Social Sciences | +447792073590 |
| Ogunsade, Adekunle (Dr) | Leicester Castle Business School | 0116 250 6369 |
| Ohalehi, Paschal (Dr) | Faculty of Business and Law | 0116 250 6572 |
| Ojebode, Aderemi A (Dr) | Leicester Castle Business School | 0116 207 8767 |
| Ojeme, Mark (Dr) | Leicester Castle Business School | +44 (0)116 250 6487 |
| Okafor, Godwin (Dr) | Leicester Castle Business School | 0116 257 7280 |
| Oladejo, Samson Oyerinde (Dr) | School of Leadership, Management and Marketing | +44 116 366 4368 |
| Olagboye, Deji (Dr) | School of Leadership, Management and Marketing | TBA |
| Oldham, Nick (Mr) | School of Humanities and Performing Arts | 0116 257 7167 |
| Oliveira, Gisela (Dr) | School of Applied Social Sciences | 0116 250 6578 |
| Oliver, Michael (Dr) | School of Engineering, Infrastructure and Sustainability | +44 (0)116 366 4294 |