Antonio de Almeida (20 January 1928 in Neuilly-sur-Seine – 18 February 1997 in Pittsburgh) was a French conductor and musicologist of Portuguese-American descent.
Born Antonio Jacques de Almeida Santos in Neuilly-sur-Seine near Paris, his father was the financier Baron de Almeida Santos of Lisbon, his mother was the former Barbara Tapper of Highland Park near Chicago.