| Position: | Wing |
| Ntl Team: | NOR |
| Birth Date: | 16 February 1991 |
| Birth Place: | Kongsberg, Norway |
| Shoots: | Left |
| Height Ft: | 6 |
| Height In: | 0 |
| Weight Lb: | 185 |
| League: | First Division |
| Team: | Tønsberg |
| Career Start: | 2009 |
| Former Teams: | Lillehammer IK Rosenborg IHK Stavanger Oilers Stjernen |
Petter Røste Fossen (born February 16, 1991) is a Norwegian ice hockey player who is currently playing for Tønsberg of the Norwegian First Division.