Marthinsen
Marthinsen is a surname. Notable people with the surname include:
- Finn Kristian Marthinsen, Norwegian politician
- Jim Marthinsen, Norwegian ice hockey player
- Karl Marthinsen, Norwegian Army commander
- Mariann Marthinsen, Norwegian cross-country skier and swimmer
- Marianne Marthinsen, Norwegian politician
- Niels Marthinsen, Danish composer
- Ole Marthinsen, Norwegian bandy player