Per Larssen should not be confused with Per Larsson.
Per Larssen (11 June 1881 - 21 October 1947) was Norwegian Minister of Trade 1931–1932 in Kolstad's Cabinet.
Son of a farmer, he was an engineer by education, with a Ph.D from Dresden University of Technology in 1924. He worked as director of the National Insurance Service 1932 - 1937; as acting port director 1937 - 1940 and then as port director from 1940.[1]