Acrefair is a village in Wrexham County Borough, north-east Wales, in the community of Cefn. It was formerly part of the ancient parish of Ruabon, and is located between Wrexham and Llangollen. It is close to the villages of Trevor, Cefn Mawr, Ruabon and Plas Madoc. The name Acrefair originates from the Welsh word for acres—acrau, or acre in the local Welsh dialect—and Mair, the Welsh name for Mary. The English meaning of Acrefair is Mary's Acres.