Tomoko Sasaki (佐々木 知子, Sasaki Tomoko, born 2 March 1955) is a Japanese lawyer, politician, novelist and former prosecutor. She became a prosecutor in 1983, and worked at the United Nations Asia and Far East Institute for the Prevention of Crime and the Treatment of Offenders from 1993 to 1996. She set up a law firm in 2004 and became a professor of law at Teikyo University in 2005.