Names
- Oba, Dayna1
- Obama, Barack1
- Ohata, Robert1
- Okamoto, Neal T.1
- Omori, Rachel1
- Ong, Yoke Lin1
- Onizuka, Ellison S.1
- Onodera, Masayoshi1
- Oshiro, Paul T.1
- Ottawa Indians1
- Pearson, Drew, 1951-1
- Pellegrino, Shelley, J.1
- Percy, Charles H., 1919-20111
- Peres, Shimon, 1923-20161
- Poff, Richard H. (Richard Harding), 1923-20111
- Ponca Indians1
- Popkin, Ruth1
- Principi, Anthony Joseph, 1944-1
- Quinn, William Francis, 1919-20061
- Ramos, Fidel V., 1928-1
