马耶讷省（法文：Mayenne）是法国卢瓦尔河地区大区所辖的省份。该省编号为53。

Mayenne (French pronunciation: ​[majɛn]) is a department in northwest France named after the Mayenne River. Mayenne is part of the current region of Pays de la Loire and is surrounded by the departments of Manche, Orne, Sarthe, Maine-et-Loire, and Ille-et-Vilaine.