Leif Preus (18 February 1928 – 5 May 2013) was a Norwegian photographer and museum founder.
He was born in Horten as a son of Sverre Preus (1897–1988) and Marian Christoffersen (1901–1972). He was married from 1951.[1]
After eight years in the Royal Norwegian Navy he established his photo company Preus Foto in 1956. He established into a nationwide photo store chain. In 1976 his family founded Preus Photo Museum, from 2005 named Preus Museum in his hometown Horten.[2]