person name with O
- Oliver
- Olivia
- Oscar
- Owen
- Omar
- Olive
- Ollie
- Orlando
- Otto
- Olga
- Olaf
- Oswald
- Obama
- Olly
- Oprah
- Otis
- Opal
- Octavia
- ophelia
- Octavio
- Orion
- oliva
- Oli
- Osvaldo
- Ola
- Orville
- Osman
- Oman
- odin
- Olivier
- Osama
- Orla
- Ozzy
- Omkar
- Othello
- Oriana
- Oskar
- Omer
- Oswaldo
- Oakley
- Octavius
- Ole
- Oren
- Oleg
- omen
- Olsen
- Oran
- Otavio
- Opra
- Orin
- Octavious
- Odette
- Octavian
- Osiris
- Olivia Rodrigo
- Opera
- Orly
- Olivander
- Ornella
- olie
- OJ Simpson
- Orwell
- ocean
- Orazio
- Orianna
- Orlando Bloom
- Omarion
- omari
- Oggy
- orson
- Olliver
- Otter
- Orhan
- Oma
- octopus
- Ofelia
- Ori
- orland
- Oslo
- oracio
- Ophilia
- Owen Wilson
- Oviya
- Olympia
- Orpheus
- Opie
- Olek
- Ozzie
- obrien
- Onyx
- Orian
- Orvil
- oven
- orlin
- ora
- Ottis
- Oden
- Olson
- Oscer
- Omid
The words in the list person name with O come from players of the word game Categories game.