All known PlayStation Portable games
2,535 games from Wikipedia, Wikidata, MobyGames and players' collections. Most are basic entries that list facts from public sources.
Games
- O*G*A Onigokko Royale: Hunter wa Kotou de Koiosuru
- Obscure: The Aftermath
- Off Road2008
- Ōkami Kakushi2009
- Okashi na Shima no Peter Pan: Sweet Never Land
- Omerta: Chinmoku no Okite - The Legacy
- Omochabako no Kuni no Alice: Wonderful Wonder World
- Omoi no Kakera: Close To
- Omoide ni Kawaru-Kimi: Memories Off
- One Piece: Romance Dawn2012
- Onechanbara Special2011
- Onigokko!
- Onigokko! Portable
- Online Chess Kingdoms2006
- Onore no Shinzuru Michi o Yuke
- Ooedo Senryoubako
- Ookami Kakushi
- Open Season2006
- Ore ni Hatarakette Iwaretemo
- Ore ni Hatarakette Iwaretemo Otsu
- Ore no Dungeon
- Ore no Imoto ga Konna ni Kawaii Wake ga Nai Portable ga Tsuzuku Wake ga Nai
- Ore no Kanojo no Uraomote2013
- Ore no Kanojo no Uraomote: Pure Sweet Heart
- Ore no Shikabane o Koete Yuke1999
- Ore no Shikabane wo Koete Yuke
- Ore wa Shoujo Mangaka
- Oretachi no Sabage Portable
- Oretachi no Sabage Versus
- Othello2009
- Otome wa Boku ni Koishiteru2005
- Otome wa Boku ni Koishiteru Portable
- Otome wa Boku ni Koishiteru Portable: Futari no Elder
- Otome wa Boku ni Koishiteru: Futari no Elder2010
- Otometeki Koi Kakumei * Love Revo! Portable
- Otometeki Koi Kakumei * Love Revo!! 100 kg Kara Hajimaru Koi Monogatari
- Otsuge Uranai nan desu.
- Ouka Sengoku Portable
- Oumagatoki: Kaidan Romance
- Outlast: Whistleblower2014
- OutRun
- OutRun 2006: Coast 2 Coast2006
- Over the Hedge: Hammy Goes Nuts!2006
- Over the Hedge: Hammy Goes Nuts!
- OverBlood1996
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