| Name | Department | Telephone |
| O' Sullivan, Angela (Professor) | School of Allied Health Sciences | +44 (0)116 207 8821 |
| Obembe, Demola (Dr) | Leicester Castle Business School | +44 (0)116 250 7916 |
| Obembe, Funmi (Dr) | School of Computer Science and Informatics | 0116 201 3871 |
| 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 |
| Odindo, Christopher (Dr) | Leicester Castle Business School | 0116 255 1551 |
| Odumosu, Emmanuel Oluwaseun (Mr) | Leicester Castle Business School | N/A |
| Ofosu-Hene, Eric (Dr) | Leicester Castle Business School | 0116 366 4520 |
| Ogman, Robert () | Faculty of Business and Law | N/A |
| Ogoh, George (Dr) | School of Computer Science and Informatics | 0116 250 6374 |
| Ogunmokun, Olapeju Comfort (Mrs) | Faculty of Business and Law | N/A |
| 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 |
| Ojo, Ngozichukwuka (Mrs) | Leicester Castle Business School | N/A |
| Okafor, Godwin (Dr) | Leicester Castle Business School | 0116 257 7280 |
| Oladejo, Samson (Dr) | Leicester Castle Business School | N/A |
| Olagboye, Deji (Mr) | Leicester Castle Business School | N/A |