Benllech is a large village on the Isle of Anglesey in Wales. It is in the community of Llanfair-Mathafarn-Eithaf, which has a population of 3,382, making it the fourth largest settlement on the island of Anglesey. The name of Benllech village had been removed by the time of the 2011 census with the community being listed under Llanfair-Mathafarn-Eithaf with the electoral ward being listed under Llanddyfnan.