Sergio Mestre Sánchez (born 13 February 2005) is a Spanish footballer currently playing as a goalkeeper for Real Madrid Castilla.
Mestre is a product of the youth academy of his local club Club las Encinas, before moving to the academy of Atlético Madrid in 2012 and working through all their youth levels. He was promoted to Atlético Madrid B in 2022, but made no appearances. He was on the bench for the senior Atlético Madrid squad for a La Liga mach against Las Palmas on 15 November 2023. His contract with Atlético Madrid expired in June 2024.
On 3 July 2024, Mestre transferred to their crosstown rivals Real Madrid on a free, and was assigned to their C team. Ahead of the 2024âÂÂ25 season, Mestre was registered in Real Madrid's senior side for the UEFA Champions League. On 13 September 2024, he was promoted to the matchday squad of Real Madrid for the first time, against Real Sociedad in La Liga.
It was on 1 July 2025 that Sergio Mestre moved up the ranks and joined the Merengues<nowiki/>' B team, Real Madrid Castilla.
Mestre is a youth international for Spain, having played for the Spain U17s in 2022.