Samuelsen is an Scandinavian patronymic surname meaing son of Samuel. There are alternate spellings such as the English language Samuelson and the Swedish Samuelsson. It is uncommon as a given name. Samuelsen may refer to:
- Aage Samuelsen (1919 - 1987), Norwegian evangelist, singer and composer
- Anders Samuelsen (b. 1967), Danish politician
- Andras Samuelsen (1873 - 1954), Faroese politician and Prime Minister
- Alf Ivar Samuelsen (b. 1942), Norwegian politician
- Frank Samuelsen (b. ?), Norwegian immigrant to USA, one of the first people ever to row across an ocean
- Jone Samuelsen (b. 1984), Norwegian footballer
- SÃmun Samuelsen (b. 1985), Faroese footballer