ÅŒba, Oba, Ooba or Ohba (written: , or ) is a Japanese surname. Notable people with the surname include:
* , Japanese footballer
*, Japanese table tennis player
* , Japanese aikidoka and judoka
* , Japanese samurai
* , Japanese footballer
* , Japanese actor
* , Japanese voice actor and narrator
* , Japanese boxer
* , Japanese singer and actress
* , Japanese writer and social critic
* , Japanese figure skater
* , Japanese video game designer
* , Japanese submarine commander
* , Imperial Japanese Army officer
* , Japanese basketball player and executive
* , Japanese maki-e lacquer artist
* , Japanese baseball player
* , Japanese manga artist
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Japanese-language surnames