Anthony Sawoniuk, formerly Andrei Andreeovich Sawoniuk (; 7 March 1921 – 6 November 2005) was a Belorussian Nazi collaborator from the town of Domaczewo in pre-war Poland (now Damachava, Belarus). After taking part in the murder of Jews in his home town, he served in the SS until November 1944 when deserted and joined to the Polish II Corps in the Eighth Army (United Kingdom). After the war he settled in Britain, became a British citizen and subsequently became the first person to be convicted under the UK's War Crimes Act 1991. He died in prison in Norwich, England.