O'dwyer Thomas L.
O'kane Paul
O'kane Paul James
Obenchain Richard F.
Odberg John August Benjamin
Ofengenden Abram M.
Ofner Hanspeter
Ogata Masanobu
Ohiraki Kenji
Ohkoshi Kenji
Ohno Yohtaro
Ohno Yotaro
Ohrt Herman
Ohzeki Shoichiro
Okabe Kyoji
Oki Koji
Okimoto Ken-Ichi
Okimoto Kenichi
Okuno Ryuzo
Olivierse Hendrik