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