Oliver Eyro Thychosen (born 17 January 1993) is a retired Danish professional footballer.

Thychosen got his debut for the first team at the age of 18 on 14 May 2011, where he came on the pitch and replaced Kim Olsen in the 87th minute.

[3] His injuries continued at his new club, and for this reason, he only played 13 matches in the league, in his first season.

On 1 February 2016, Vejle confirmed that they had signed their former player, Thychosen, on a loan deal for the rest of the season.

[7] Thychosen subsequently revealed in an interview that since his cruciate ligament injury in 2016, he had been having problems with his knee, which was the reason he had to retire.