- O'Brien, Cullen Shea1
- O'Brien, Patrick Joseph1
- O'Connell, Christine Jean1
- O'Toole, Shannon Elizabeth1
- Okafor, Oluchukwu Jubilee1
- Oliveira, Catarina Alexandra1
- Oliveira, Thales Rodrigues1
- Oliveri, Michael Leo1
- Oshetsky, Michael Ryan1
- Oswald, Caleb Chase1
- Ou, Baian1