Gaerwen is a village on the island of Anglesey, Wales. It is located in the south of the island 4 miles west of Llanfairpwllgwyngyll and 4 miles southeast of Llangefni . The A5 runs through the village, and the A55 runs just a few hundred metres north.
Facilities in Gaerwen include four public houses, two car dealerships, three churches, one Mormon meeting house, and a garden centre in the south portion of the village.
It is very much a village of the old and new with two disused windmills in the north of the village and a modern industrial estate making up the south west portion of the village.
There is a war memorial at the heart of the village to pay tribute to those who have fallen in both World Wars . The village is probably most famous, however, for housing the southernmost station of the Anglesey Central Railway which was in use between 1864 and 1993. It was also used on the Bangor to Holyhead mainline until 1963.
Star is a small settlement consisting of a few houses just east of the village.