Alf Martinius Lagesen (24 June 1897 – 13 February 1973) was a Norwegian footballer who played as a goalkeeper for Drammens BK and the Norwegian national team.
Lagesen played one international match, a friendly in 1920 against Sweden in Stockholm.
[1] He was in the Norwegian squad at the Antwerp Olympics the same year where he was reserve goalkeeper behind Sigurd Wathne, but he did not play in any matches.
[2] Lagesen was also a referee and officiated the 1921 Norwegian Football Cup final.
[4] This biographical article related to a Norwegian association football goalkeeper is a stub.