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.

[1] Elected to the House of Councillors in 1998, Sasaki was engaged in introducing the Stalker Regulation Law of 2000.

[2] She served as the director of the Women's Affairs Division of the Liberal Democratic Party.

[3] She did not run for the election in 2004, but remains a member of the Party Ethics Committee of the LDP.