Tony Sithembiso Yengeni (born 11 October 1954) is a South African politician. He was an anti-Apartheid activist and joined the African National Congress (ANC) in 1976 and later its armed wing, Umkhonto we Sizwe. From 1994 until 2003 he served as member of the South African parliament for the ruling ANC party, including service as their Chief Whip. In 2003, he was found guilty of fraud in a case linked to the corruption investigation into an arms deal, but he remained an ANC party stalwart. In 2018, he was made the chairperson of the ANC's crime and corruption committee. He also served a prison sentence for getting an unlawful discount on a Mercedes Benz he purchased.