William Kaastrup

William Elgaard Kaastrup (born 21 March 2004) is a Danish footballer who plays as a left-back for Swedish Allsvenskan club Västerås, on loan from Danish Superliga club Randers FC.

Club career
On 21 January 2023, Randers FC confirmed that the club had signed 18-year old Kaastrup from F.C. Copenhagen, effective from the summer of 2023. Five days later, however, Randers confirmed that the clubs had agreed on a deal that sent Kaastrup to Randers with immediate effect instead. Kaastrup signed a deal until June 2026.

After a few appearances for Randers' U19 team, Kaastrup made his official debut for his new club on 23 April 2023 against Brøndby IF, replacing Adam Andersson for the last few minutes. In pursuit of more playing time, on January 31, 2024, Kaastrup was loaned to Swedish Allsvenskan club Västerås until the end of the year.