- O'Brien, Jason Thomas1
- O'Connell, Lauren Aileen1
- O'Connell, Robert Daniel1
- O'Donnell, Malinda Christene1
- O'Leary, Jason E.1
- O'Neill, Katherine Lee1
- O'Shea, Erin Elizabeth1
- Ortega, Schuyler Javier1
- Ortiz, Javier1
- Osattin, Michael David1
- Otenti, Alexander Alfred1