| Nils Hellsten | |
| Birth Date: | 19 February 1886 |
| Birth Place: | Stockholm, Sweden |
| Death Place: | Stockholm, Sweden |
| Sport: | Fencing |
| Club: | FFF, Stockholm |
| Show-Medals: | yes |
Nils Erik Hellsten (19 February 1886 – 12 April 1962) was a Swedish fencer who competed at the 1920, 1924 and 1928 Olympics.[1] He won a bronze medal in the individual épée in 1924 and finished fifth in 1928. In 1920 he also took part in the individual foil contest.[2] At the world championships he took two bronze medals in the team épée, in 1931 and 1934.
Hellsten was a military officer, a major in reserves. He was a teacher and deputy head at the Swedish School of Sport and Health Sciences. He is not related to the Olympic gymnast Nils Hellsten.[3]