Ogata is a Japanese surname. Notable people with the surname include:
Akinori Ogata (born 1973), Japanese racing driver
Akira Ogata (1887–1978), Japanese chemist
Atsunobu Ogata (born 1948), Japanese canoeist
Ogata Gekkō (1859–1920), Japanese painter
Issey Ogata (born 1952), Japanese actor and comedian
Ken Ogata (1957–2008), Japanese actor
Kenichi Ogata (disambiguation), several people
Kōji Ogata (born 1970), Japanese manga artist
Ogata Kenzan (1663–1743), Japanese potter and painter
Ogata Kōan (1810–1863), Japanese physician
Ogata Kōrin (1658–1716), Japanese painter
Koichi Ogata (born 1968), Japanese baseball player
Masafumi Ogata (born 1968), Japanese video game composer
Masaki Ogata (born 1964), Japanese Go player
Megumi Ogata (born 1965), Japanese voice actress and singer
Mitsuru Ogata (born 1961), Japanese voice actor
Paul Ogata (born 1968), American comedian
Ryuichi Ogata (born 1985), Japanese vocalist
Ogata no Saburo Koreyoshi (ca. 1100–1200), Japanese nobleman
Sadako Ogata (born 1927), Japanese diplomat and academic
Shigeo Ogata (born 1968), Japanese freestyle swimmer
Taketora Ogata (1888–1956), Japanese newspaper editor and politician
Tsuyoshi Ogata (born 1973), Japanese athlete