Kacper Kostorz (born 21 August 1999) is a Polish professional footballer who plays as a forward for I liga club Polonia Warsaw.
Kostorz started his career with Podbeskidzie Bielsko-Biaà Âa. On 7 January 2022, he moved from Legia Warsaw to Pogoà  Szczecin. On 17 February 2023, Kostorz was loaned until the end of the season with an option to make the move permanent to another Ekstraklasa side, Korona Kielce.
On 11 July 2023, Kostorz joined Eerste Divisie side Den Bosch on a season-long loan, with an option to make the move permanent. In the 2023âÂÂ24 season, he scored 16 goals in 38 appearances and was named the club's Player of the Year, before announcing he would leave Den Bosch following the expiration of his loan.
On 9 July 2024, Kostorz moved on loan with an option to buy to Eredivisie club NAC Breda until the end of the season.
On 15 January 2026, Kostorz terminated his contract with Pogoà  by mutual consent. Four days later, he signed a three-and-a-half-year deal for I liga club Polonia Warsaw.
Legia Warsaw
Individual