| Oon Sum Chuan | Middle Temple |
| Oon Thian Seng | Gray's Inn |
| Oon Wei Chi | Certificate In Legal Practice (CLP) |
| Oon Yee Shin | Certificate In Legal Practice (CLP) |
| Oong Chiew Lin | Lincoln's Inn |
| Opat A/L Aisin | Certificate In Legal Practice (CLP) |
| Orked Bt Abd Rahman | International Islamic University (IIU) |
| Oskar Tang Chee Keen | Multimedia University (MMU) |
| Osman Bin Abdullah | International Islamic University (IIU) |
| Osman Bin Ujang | International Islamic University (IIU) |
| Othman B Hashim | Lincoln's Inn |
| Othman B Mahfar | International Islamic University (IIU) |
| Othman Bin Bakar | International Islamic University (IIU) |
| Othman Bin Mohd Noor | Universiti Teknologi Mara (UiTM) |
| Ou Yang Yin Erl | Universiti Malaya (UM) |
| Ou Yong Koh Beng | Universiti Kebangsaan Malaysia (UKM) |
| Oui Pei San | Lincoln's Inn |
| Ow Hui Ching | Certificate In Legal Practice (CLP) |
| Ow Jae Vonne | Middle Temple |
| Ow Jeong Jun | Lincoln's Inn |