Name with O
- Oscar
- Olivia
- Oliver
- Omar
- Owen
- Orlando
- Otto
- Olga
- Ollie
- Olaf
- Olive
- Ophelia
- Oswald
- Orion
- Oprah
- Obama
- Osvaldo
- Octavia
- Otis
- Ola
- Opal
- Octavio
- Osman
- Olivier
- Oman
- Oskar
- Osama
- Orville
- Oleg
- Odin
- Oreo
- Ole
- Othello
- Ofelia
- Orson
- Ocean
- Octavian
- Oren
- Oakley
- Oslo
- Olsen
- Orland
- Odette
- oak
- Omen
- Odessa
- Oxford
- Orwell
- Olson
- Orly
- Osiris
- omega
- Oden
- Olympia
- Ontario
- Orin
- Ozzie
- October
- Ora
- oval
- Oregon
- Octopus
- Obadiah
- Obi
- Otter
- Oedipus
- Olivia Rodrigo
- OJ Simpson
- Opel
- opera
- orang
- Orval
- Oasis
- Oklahoma
- Ono
- onyx
- ostrich
- Orpheus
- Oceana
- O'Neil
- Own
- Otilia
- Oral
- Oneal
- Orrin
- Onur
- Odell
- orchid
- omni
- Orestes
- Osmond
- Olimpia
- Oriel
- Osaka
- Octave
- Onix
- Omid
- oliwka
- Olin
- Osborne
The words in the list Name with O come from players of the word game City, Country, River.