Isaac Monnier is a professional footballer from FRA and is currently 20 years old. He is on the books of Lorient and wears shirt number 19. His main role on the pitch is Defender.

His latest transfer saw him join Lorient B from FC Lorient U19 via on 2024-07-01.

Across the Ligue 1 2025-2026, Isaac Monnier appeared in 5 matches and averaged 0 tackles, 0 interceptions, 0 clearances, and 0 blocked shots per game.