Konstantinos 'Kostas' Kotsopoulos (; born 21 February 1997) is a Greek professional footballer who plays as a forward for Veikkausliiga club IFK Mariehamn.
Career
Atromitos
On 29 January 2018, he signed a three and a half years' contract with Super League club Atromitos. On 10 March 2018, he scored his first goal with the club in a 2–2 away draw against Panionios. On 31 October 2018, he scored a hat-trick as he scored with a head beyond the flailing goalkeeper. Two minutes after half time, Kotsopoulos then made it 2–0 for Atromitos, sliding a low cross over the line, and secured his hat trick to complete a resounding 6–1 away Greek Cup win against Iraklis. It was his first hat trick in his career.