Konstantinos (Kostas) Roukounas (Greek: Κώστας Ρούκουνας) (Principality of Samos,[1] 1903 – Athens, 11 March 1984) was a Greek singer. His repertoire included both "traditional" (δημοτικά) and "popular" songs (λαϊκά). Most notable is his contribution to the genre of rebetiko (ρεμπέτικο). Roukounas is generally known as a singer, however he was also a songwriter.