- O'Neill, Jack1
- O'Neill, Nathan1
- O'Reilly, Grace1
- O'connor, Abigail M.1
- O'connor, Shannon R.1
- O'leary, Katherine J.1
- Olaya, Grace B.1
- Oleynick, Robert1
- Olmsted, Dylan1
- Olson, Matthew S.1
- Onffroy, Maxwell2
- Osei, Michael1
- Ostrum, Taylor L.1
- Ouellette, Daniel1