Otto Martin Olsen (13 December 1884 – 12 July 1953) was a Norwegian rifle shooter who competed in the early 20th century.

He won eight Olympic medals including four gold medals.

[1] He became the third shooter to win two Olympic individual gold medals and is one of five athletes to have done so at one Olympics.

[2] This article about a Norwegian Olympic medalist is a stub.

You can help Wikipedia by expanding it.This biographical article relating to sport shooting in Norway is a stub.