Marcus Mathisen (born 27 February 1996) is a Danish professional footballer who plays as centre-back for German 2.
He was in the squad for the 2015 Danish Cup Final,[2] but remained on the bench for the whole match.
Three days later, Mathisen made his first team debut, when he replaced Daniel Amartey in a 2–0 loss against FC Midtjylland.
[3] On 20 November 2016, Mathisen scored two goals in the last play-off leg against Helsingborg at Olympia, which meant 3–2 on aggregate and advancement to 2017 Allsvenskan.
[5] On 4 January 2021, Mathisen joined IK Sirius as a free-agent; he signed a contract until 2023.