Rubén Reyes Díaz (Spanish pronunciation: [ru'ßen 're?es]; born 5 January 1979) is a Spanish retired footballer who played as a midfielder, and is a manager.
In a career spent mainly in the lower leagues, Reyes amassed Segunda División totals of 89 games and three goals in representation of five clubs.
He appeared for Oviedo and Villarreal in La Liga, totalling 21 matches.