Gerlof Fokko Mees (16 June 1926 – 31 March 2013[1]) was a Dutch ichthyologist, ornithologist and museum curator.
During 1946 to 1949 he took part as a conscript in the military actions to reestablish rule in the Dutch East Indies.
He attended the University of Leiden where he studied biology, obtaining his doctorate in 1956 with a break in Java as part of the Dutch forces during the Indonesian war of independence.
He was an assistant at the department birds of the Rijksmuseum van Natuurlijke Historie in Leiden from May 1955 to June 1957.
The death of Junge led to his appointment back in the Netherlands as Curator of Birds at the Rijksmuseum in Leiden.