Kerstin Yasmijn Casparij (born 19 August 2000) is a Dutch professional footballer who plays as a right-back or central midfielder for Women's Super League club Manchester City and the Netherlands national team.

[14] On 26 July 2022, Casparij joined Women's Super League club Manchester City on a three-year deal.

[17] Along with Rico Lewis, Casparij was named as the club's PFA Community Champions on 24 May 2024.

She made her senior team debut on 22 October 2021 as an 83rd-minute substitute for Daniëlle van de Donk in a 8–0 win against Cyprus.

[19] On 31 May 2023, she was named as part of the Netherlands provisional squad for the 2023 FIFA Women's World Cup.