Alexei Petrovich Antropov (Russian: Алексей Петрович Антропов; 25 March [O.S. 14 March] 1716 – 23 June [O.S. 12 June] 1795) was a Russian painter active primarily in St. Petersburg, where he was born and died. He also worked in Moscow and frescoed churches in Kiev. His preferred medium was oil, but he also painted miniatures and icons.
Alexei was born to the family of a government official who worked in the Armory and in the "Канцелярия от строений" (Chancellory of Buildings). Beginning in 1732, Alexei worked at the Chancellory under his relative Andrey Matveyev. After 1739 he was a member of the "painting team" of the Chancellory under Ivan Vishnyakov. As a member of the team Alexei took part in the frescoeing of the Summer Palace, Winter Palace, Anichkov Palace and other buildings of Saint Petersburg. He also studied portrait art from the court painter Louis Caravaque of France. In 1749 Alexei received the rank of the Painter's Apprentice and at the end of the 1750s the rank of the Master Painter.
In 1752-1755 he worked on the interiors of the St Andrew's Church of Kiev. He supervised the installation of the iconostasis and frescoed cupolas and walls. The most prominent of his frescoes in the church is the Last Supper in the altar.