Helmut Eder (December 26, 1916, Linz–February 8, 2005, Salzburg) was an Austrian composer. Eder studied until 1948 at the Linz Conservatory, later studying with Johann Nepomuk David in Stuttgart and Carl Orff in Munich. Returning to Linz, he became a teacher at the Linz Conservatory, accepting a position as full professor in 1962. He also conducted the Singakademie in Linz from 1953–60 and founded an electronic music studio in the city in 1959. He became professor of composition at the Salzburg Mozarteum in 1967.