Villieu-Loyes-Mollon (; Arpitan: Velyô-Louyes-Molon) is a commune in the Ain department in eastern France. It lies between Meximieux and Pont-d'Ain.
Villieu-Loyes-Mollon is the result of the merger of three former communes Villieu, Loyes and Mollon in 1974.
Population data refer to the commune in its geography as of January 2025.