Collen is a surname, and may refer to:
Edwin Henry Hayter Collen (1843–1911), British Army officer in India Désiré Collen (born 1943), Belgian physician and chemist Henry Collen (1797–1879), portrait painter Lindsey Collen (born 1948), Mauritian novelist and activist Pieter Collen (born 1980), Belgian footballer Phil Collen (born 1957), English guitarist Tom Collen, basketball coach
See also Willink van Collenprijs (English: The Willink van Collen Award), Dutch art award named after Willink van Collen