Ken Ogata (緒形 拳 Ogata Ken, 20 July 1937-5 October 2008) was a Japanese actor.

Ogata was born in Tokyo, Japan. Ogata is well known for his roles in Peter Greenaway's The Pillow Book, Paul Schrader's Mishima: A Life in Four Chapters and Shohei Imamura's The Ballad of Narayama. He won the award for best actor at the 26th Blue Ribbon Awards for Okinawan Boys.