Colin Trachsel (born 28 September 1997) is a Swiss footballer who plays for FC Köniz on loan from FC Thun II.

Career In February 2019, Trachsel was loaned out from FC Thun to FC Köniz for the rest of the season.Ligaerhalt als Ziel für den FC Thun II, bernerzeitung.ch, 28 February 2019 The deal was made permanent at the end of the season.Deadline Day: Wer kam noch, wer verliess die Super League am letzten Tag? - die grosse Super-League-Transfer-Übersicht, sport.ch, 19 July 2019

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