Sven Libaek is an Australian composer, record producer and musician. He is well known for his film and TV soundtrack music and also had a significant influence on the Australian popular music scene in the mid-1960s as the staff producer for the Australian division of CBS Records.

Libaek was born in Norway in 1938, trained as both a pianist and an actor and is a graduate of the Juilliard School in New York. He first achieved international recognition with a role in the Louis de Rochemont film Windjammer in which he both acted and performed as piano soloist with Arthur Fiedler and The Boston Pops Orchestra.