Valen is a surname. Notable people with the surname include:
Anita Valen (born 1968), Norwegian cyclistFartein Valen (1887–1952), Norwegian composer and musical theoristHenry Valen (1924–2007), Norwegian political scientistInge Valen (born 1951), Norwegian footballerKristian Valen (born 1974), Norwegian comedian and musicianMonica Valen (born 1970), Norwegian cyclistNancy Valen (born 1965), American actress and television producerNeri Valen (1893–1954), Norwegian politicianSnorre Valen (born 1984), Norwegian musician and politician