| Birth Date: | 21 January 1997 |
| Birth Place: | Zürich, Switzerland |
| Position: | Defence |
| Shoots: | Right |
| Height Ft: | 5 |
| Height In: | 11 |
| Weight Lb: | 181 |
| League: | NL |
| Team: | Genève-Servette HC |
| Former Teams: | ZSC Lions |
| Career Start: | 2014 |
Roger Karrer (born January 21, 1997) is a Swiss professional ice hockey defenceman who is currently playing with Genève-Servette HC of the National League (NL). He previously played for the GCK Lions and the ZSC Lions.
Karrer made his professional debut with the GCK Lions of the Swiss League (SL) in the 2014–15 season, appearing in 43 SL games this season. He also made his National League (NL) debut that same year with the ZSC Lions, playing 5 games and scoring no point. Karrer also played the 2015 playoffs with Zürich's junior team in the Elite Junior A, scoring 3 points in 12 games and helped the team win the championship.
Karrer eventually played 121 NL games (13 points) with Zürich and 91 SL games (23 points) with their affiliate before signing a three-year contract with an option for a fourth season with Genève-Servette HC on November 21, 2018. The contract runs from the 2019/20 season through the 2021/22 season.[1] [2] On May 13, 2021, Karrer renegotiated his contract to sign a new 4-year deal with Servette through the 2024–25 season.
Karrer made his debut with Switzerland men's team in 2018.[3]