Christopher Trimmel (born 24 February 1987 in Oberpullendorf) is an Austrian footballer currently playing for Union Berlin in the German 2. Bundesliga.
Trimmel started his career at local club USC Mannersdorf. He switched to ASK Horitschon, where he played for two seasons until he was discovered by Rapid Wien. He signed with Rapid in 2008, and initially played for the amateurs, but quickly managed to receive a place in the first team squad. On 2 August 2009, in only his sixth league game, Trimmel scored a hat-trick in the 5–1 victory over Austria Kärnten, in only six minutes (84, 87, 90).
On 5 August 2009, it was announced that Trimmel was a part of the national team squad for the upcoming friendly match against Cameroon.