Pokemon with O

• Onix

  Rock/Ground-type snake-like Pokémon from Kanto.

• Oddish

  Grass/Poison-type root Pokémon from Kanto.

• Octillery

  Water-type octopus Pokémon from Johto.

• Omastar

  Rock/Water-type fossil Pokémon, evolves from Omanyte.

• Oshawott

  Water-type starter sea otter Pokémon from Unova.

• Oranguru

  Normal/Psychic-type wise monkey Pokémon.

• Omanyte

  Rock/Water-type fossil Pokémon revived from Helix Fossil.

• Oricorio

  Flying-type Pokémon with forms based on dances.

• Obstagoon

  Dark/Normal-type Pokémon, Galar form evolution of Linoone.

• Orbeetle

  Bug/Psychic-type beetle Pokémon from Galar.

• Ominite
• Oshwatt
• Orangoru
• oshowat
• Octoclock
• Advertisement
• otto
• oso
• Orthworm
• Onex
• omicron
• Ogerpon
• Octilary
• Obalie
• oval
• Ottawa
• Oswald
• ono
• Omystar
• Omistar
• omg
• Omaster
• Oli
• Oki
• Ohrdoch
• Oynx
• owlette
• Ottish
• Oricoro
• oreon
• Orangu
• o pikachu
• oof
• Oodish
• oni
• One
• omantye
• Ola
• Okie
• Oil
• Oh ho
• Ozone
• Orochimaru
• Oma
• Olly
• olivia
• Ohio
• octolock

The words in the list Pokemon with O come from players of the word game Categories game.