Christian Andreas Fassnacht (born 11 November 1993) is a Swiss professional footballer who plays as a right winger for Swiss Super League club Young Boys and the Switzerland national team.

[5] He played an important role for the club during the title winning season, scoring 11 league goals.

[6] On 3 October 2019, Fassnacht scored a late goal deep into second-half stoppage time to give Young Boys a 2–1 home win over Rangers in the Europa League group stage.

[8] On 25 July 2023, he departed Young Boys after six years at the club to join Norwich City,[9] reuniting with his former head coach David Wagner.

On 12 August, he scored his first goal for Norwich City in a 4–4 draw against Southampton.