Swedish composer, pianist and professor, born 13 December 1906 in Gothenburg, died 14 October 1981.

Liljefors was a piano and harmony teacher at the Royal Academy of Music and became a professor in 1968. He was one of the initiators of Fylkingen and its chairman 1933-1946 and chairman of FST - the Association of Swedish Composers 1947-1963.

Among Liljefors' compositions are several works for piano, a violin concerto, orchestral works and songs.

From 1958 Member (no. 680) of the Swedish Royal Academy of Music

He was the son of Ruben Liljefors and the father of Inger Liljefors and Mats Liljefors.