- O'Connell, Olivia J.1
- O'Connor, Jacqueline Elizabeth1
- O'Donnell, Kathryn Marie1
- O'Neil, Kara1
- O'Neil, Timothy Patrick1
- O'leary, Katherine J.1
- Opperman, Gregory Lee1
- Ortega, Juan Carlos1
- Osgood, Justin Wylie1
- Otterman, Amanda Dale1
- Otto, Nicole Anais1
- Otuyelu, Olusope M.1