Boy's name with O
- Oliver
- Oscar
- Owen
- Omar
- Ollie
- Orlando
- Otto
- Olaf
- Orion
- Oswald
- Otis
- Olive
- Orville
- Olivier
- Odin
- Obama
- Octavio
- Oman
- Osvaldo
- Osman
- Oren
- Oleg
- Osama
- Oran
- Ole
- Orson
- Oden
- Orin
- Oskar
- Octavian
- Omen
- Orpheus
- Oakley
- Olsen
- Oslo
- Obi
- Ola
- Opal
- Ocean
- Orwell
- Ozzie
- Otter
- Onyx
- Oak
- Osiris
- Octave
- Odell
- Obadiah
- Olson
- Odis
- Orrin
- Orland
- Odysseus
- Oedipus
- Olin
- Oberon
- Oxford
- Osmond
- Oven
- Oval
- Omega
- Omid
- Olav
- Ogden
- Osborn
- Olga
- Owain
- Orly
- Olen
- Osama Bin Laden
- Oily
- October
- Orlando Bloom
- Ono
- Oneal
- Ontario
- Orton
- O'Neil
- Oppenheimer
- Oleander
- Organ
- Ovid
- Obey
- Osborne
- Ora
- Oriel
- Oasis
- Oakland
- Oracle
- O'Brien
- Odom
- Oro
- Opus
- ohm
- Ortega
- O’Neil
- Owe
- Osbert
- Orestes
- One
Οι λέξεις στη λίστα Boy's name with O προέρχονται από παίκτες του λεκτικού παιχνιδιού Όνομα, Ζώο, Πράγμα.