Alessio Daniel Castro-Montes (born 17 May 1997) is a Belgian professional footballer who plays for German club 1. FC Köln.
He started his football career at Gelmen V.V. under the coaching of his father, where also his three year older brother played. He was soon noticed by a scout from Standard Liège and shortly after moved to the club where he played for seven years. He later moved to R.S.C. Anderlecht.
On 17 June 2019, Eupen announced that they had sold Castro-Montes to K.A.A. Gent.
On 1 September 2023, Castro-Montes signed a three-year contract with Union SG.
On 1 September 2025, Castro-Montes moved to 1. FC Köln in Germany on a three-season deal.
Castro-Montes was born in Belgium to a Spanish father and a Belgian mother.
Gent
Union SG