Martinsen is a surname. Notable people with the surname include:
- Alf Martinsen, known as "Kaka" (1911–1988), Norwegian football (soccer) player
- Andreas Martinsen (born 1990), Norwegian ice hockey player
- Andreas Martinsen (athlete) (born 1990), Danish athlete specialising in the sprint hurdles
- Astrid Murberg Martinsen (1932–1991), Norwegian politician
- Bente Martinsen, also known as Bente Skari (born 1972), Norwegian former cross-country skier
- Gustav Martinsen (1843–1920), Norwegian industrial leader and politician
- Haavard Martinsen (1879–1967), Norwegian chemist and industrial leader
- Ivar Martinsen (1920–2018), Norwegian speed skater
- Kari Martinsen (born 1943), Norwegian nurse and academic
- Karl Martinsen, sometimes spelled Karl Marthinsen (1896–1945), Norwegian commander of Statspolitiet
- Knud Børge Martinsen (1905–1949), Danish officer
- Odd Martinsen (1942–2025), Norwegian cross-country skier
- Ole Einar Martinsen (born 1967), Norwegian football defender
- Petter Martinsen (1887–1972), Norwegian gymnast
- Ragnvald Martinsen (1906–1987), Norwegian cyclist
- Rasmus Martinsen (born 1996), Norwegian footballer
- Sven Martinsen (1900–1968), Norwegian sport wrestler
- Thor Martinsen, known as "Mr Frisk" (born 1945) is a Norwegian ice hockey player
- Vidar Martinsen (born 1982), Norwegian footballer
- Ylva Martinsen, also known as Ylva Lindberg (born 1976), Swedish retired ice hockey player
This page lists people with the surname Martinsen.
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.