- O'Connor, Nathaniel1
- O'Malley, Patrick Daniel1
- Obi, Aghogho A1
- Ogden, Samuel1
- Olivieri, Steven1
- Onofrei, Daniel T.1
- Onthank, David C1
- Orlando, Gerardo1
- Ornell, Kimberly J1
- Orr, Robert G.1
- Ostrow, Korinn S.1
- Oyewole, Deborah O.1
- Ozel, Selim1
- Ozturk, Erdinc1