Calvin Owen Harm Raatsie (born 9 February 2002) is a Dutch professional footballer who plays as a goalkeeper for Eerste Divisie club Excelsior.

[3][4] He made an appearance on the bench for the senior team, but was an unused substitute in a 3–1 win over VVV-Venlo on 13 May 2021.

[6] He made his debut for the reserve team, Jong Utrecht, on the first matchday of the 2022–23 Eerste Divisie, starting in a 3–0 loss to TOP Oss on 5 August.

[10][11] He was first choice goalkeeper of under-17 team which won the 2019 UEFA European Under-17 Championship.

[12] He also played all matches at the 2019 FIFA U-17 World Cup, as Netherlands finished fourth in the tournament.