Ohler, Norbert
Oliva, Héctor (trans. Baliga, Shilpa)
Orden Miracle (la), Ernesto
Orlandis, José
Ortenberg, Veronica
Ortiz Baeza, José Antonio and Paz de Santos. Manuel and Garcia Mascarell, Francisco
Osman, Colin
Otero Pedrayo, Ramon
Oursel, Raymond
Ousterhout, Robert