Exploring by Members
- O. Bharathan 8
- O. Rajagopal 3
- O.S. Manian 109
- O.V. Alagesan Mudaliar 2676
- Om Birla 1199
- Om Mehta 993
- Om Parkash Jindal 44
- Om Prakash 3
- Om Prakash Tyagi 1271
- Om Prakash Yadav 822
- Omak Apang 75
- Omar Abdullah 18
- Ompal Singh Nidar 156
- Omprakash Bhupalsingh alias Pavan Rajenimbalkar 270
- Omvati Devi 2
- Onkar Lal Chauhan 39
- Onkarlal Berwa 3376
- Onkarlal Bohra 126
- Oscar Fernandes 352
- Osman Ali S. Khan 84