Mathias Krathmann Gehrt (born 7 June 1992) is a Danish retired professional footballer who played as a midfielder.
Born in Copenhagen, Mathias Gehrt was a Brøndby IF youth graduate, and made his debut with the first team on 6 March 2011, coming on as a 64th-minute substitute for Ousman Jallow in a 1âÂÂ1 home draw against Lyngby. Gehrt scored his first senior goal against Silkeborg on 3 April, netting the first of a 2âÂÂ2 home draw.
On 22 August 2013, Gehrt signed a two-year deal with ADO Den Haag.
On 31 August 2016, Gehrt cut ties with ADO. A few weeks later, he signed with Danish 1st Division side FC Helsingør on a deal for the rest of 2016, after a successful tryout. However, his contract was not extended, and he subsequently signed a two-year deal with FC Roskilde.
On 1 September 2018, he signed a deal with Nykøbing FC. After five season in Nykøbing, Gehrt signed with newly promoted Danish Superliga club Hvidovre IF in June 2023. On 23 December 2024 Hvidovre confirmed that they had terminated the contract with Gehrt, and just three days later, the 32-year-old Gehrt himself confirmed that he had chosen to end his career and would focus on his civilian career.