Sergio Mihanovich (Buenos Aires, May 8, 1937 - May 7, 2012) was an Argentine jazz pianist, singer and composer.
His best known work is Sometime Ago, which has been recorded instrumentally by Cannonball Adderley, Bill Evans, Art Farmer, Stan Getz, Joe Pass, George Shearing, Clark Terry and numerous others.
He is the uncle of Argentine singer/actress Sandra Mihanovich.