Koen Kostons (born 18 September 1999) is a Dutch professional footballer who plays as a striker for club PEC Zwolle.
Kostons progressed through MVV's youth academy, joining their setup as a thirteen-year-old from boyhood club Lanaken VV. In the 2016âÂÂ17 Eerste Divisie season, he was included in the matchday squad of the first team on several occasions, but did not yet make his debut. He made his debut on 19 September 2017 in a 3âÂÂ2 loss to AZ in the KNVB Cup, replacing Christophe Janssens in the 90th minute. Kostons made his league debut on 6 October 2017 in a 3âÂÂ2 loss against Almere City, coming off the bench in the 88th minute for Shermaine Martina. On 24 November 2017, he scored his first professional goal in a 3âÂÂ1 victory against Helmond Sport.
On 27 July 2021, Kostons joined Swedish third-tier Ettan club Dalkurd. He made his debut for Dalkurd on 15 August 2021, also scoring his first goal for the club, in a 1âÂÂ1 draw against UmeÃÂ¥ FC.
He was part of Dalkurd's promotion to the second highest level in Sweden, Superettan, scoring 11 goals in 16 appearances.
On 4 July 2022, Kostons returned to his former club MVV on a two-year contract. He made his return debut for MVV on the first matchday of the 2022âÂÂ23 season, starting at forward alongside Orhan Dà ¾epar in a 3âÂÂ1 loss to Jong AZ. The following week he scored his first goal for the club upon returning, opening the score in a 3âÂÂ1 home win over NAC Breda.
In January 2024 Kostons joined 2. Bundesliga club SC Paderborn.
On 30 January 2025, Kostons moved on loan to Kortrijk in Belgium until the end of the 2024âÂÂ25 season.
On 17 July 2025, Kostons joined PEC Zwolle on a four-year contract.