O'Neal David Lance
O'Brien David E.
O'Hare Thomas P.
O'Regan Brendan
O'Rourke David P.
Oakes Jeffrey T.
Obinata Atsushi
Observatoire Cantonal de Neuchatel
Odedara Bhavin
Oga Toshiyuki
Ogren Jeff
Oh-Hashi Hideyuki
Ohi Fukashi
Oishi Kazuaki
Okada Toshiro
Okubo Mamiko
Olbrechts Guy R.
Olgaard Christian
Olgaard Christian V.
Olofsson Joakim