| Full Name: | Sven Bernth Thomsen |
| Nationality: | Danish |
| Birth Place: | Copenhagen, Denmark |
| Death Place: | Vittsjö, Hässleholm, Denmark |
| Classes: | 6 Metre |
| Show-Medals: | yes |
Sven Bernth Thomsen (7 September 1884 – 14 November 1968) was a Danish sailor who competed in the 1912 Summer Olympics. He was part of the Danish boat Nurdug II, which won the silver medal in the 6 metre class.[1]