Tasso Janopoulo (Greek: Τάσος Γιαννόπουλος; 16 October 1897 in Alexandria – 1970 in Paris) was an Egyptian pianist of Greek descent, and a naturalised French citizen. He collaborated with musicians such as Henryk Szeryng, Jacques Thibaud, Paul Tortelier, Pierre Fournier and Ninon Vallin as an accompanist.