- O'Donnell, Dean Michael19
- O'Shaughnessy, James C.4
- Okhuysen, Victor1
- Okumus, Pinar1
- Olinger, David J.28
- Olsen, Carissa Lynn1
- Olson, Sarah D5
- Onal, Cagdas11
- Orr, John6
- Osorio, Fernando C. Colon4
- Ottmar, Erin R7
- Overstrom, Eric W.5
- Oyewole, Oluwaseun K.1
- O’Donnell, Dean1