Nikolaj Kirk

On 31 March 2019, Kirk joined Norwegian Eliteserien club Stabæk on loan until 25 July 2019. He made just six appearances before his loan was terminated early.

On 20 July 2019, Kirk joined Danish 1. Division club FC Fredericia on a loan which was later extended until the end of the 2019–20 season. He scored the first senior goal of his career on his seventh appearance, with what proved to be a consolation in a 2–1 defeat to Fremad Amager.

On 22 June 2017, Kirk joined the B team at Championship club Brentford on loan for the duration of the 2017–18 season. He made 34 appearances, scored one goal and rejoined the club on loan for the 2018–19 season. Kirk captained the B team and played as a utility player in defence and midfield during the campaign. He won his maiden call into the first team squad for an FA Cup fifth round match versus Swansea City on 17 February 2019 and made the first senior appearance of his career as a substitute for Saïd Benrahma after 69 minutes of the 4–1 defeat. Kirk's loan was terminated in March 2019, by which time he had made 71 appearances for Brentford B.

A central midfielder, Kirk began his career with spells at Grønbjerg IF, Spjald IF and Vildbjerg SF, before joining the academy at Superliga club FC Midtjylland in 2013. He progressed to sign a five-year professional contract in September 2016 and spent the 2017–18 and 2018–19 seasons away on loan.

Nikolaj Kirk (born 19 March 1998) is a Danish professional football central midfielder and full back who plays for FC Fredericia, on loan from FC Midtjylland. He is a product of the FC Midtjylland academy and represented Denmark at youth level.