Hillary Diaz is a 22-year-old professional football player from FRA. He currently plays for Fleury 91 Women, wearing the number 44 shirt. At the international level, he represents France (w) U20. He plays primarily as a Defender.

Throughout the French Division 1 Feminine 2025-2026, Hillary Diaz featured in 15 matches, averaging 0.5 tackles, 0.5 interceptions, and 2.2 clearances per game, while blocking 0.1 shots per game.