Meidrim is a community some west of Carmarthen and north of St Clears in Carmarthenshire, Wales. Meidrim (formerly also spelled 'Mydrim') and its twin village of Drefach are situated either side of the Afon Dewi Fawr at the point where this small river is crossed by the B4298 road and meets with the B4299 road.
Meidrim has a parish church, a Nonconformist chapel, a pub, a primary school, a village green or common and a park. It also boasts a number of self-catering cottages in the surrounding area making it popular for tourists visiting Pembrokeshire National Park and the Brecon Beacons as well as a number of local walks.
The etymological root of Meidrim is contested though 'Mei' and 'trum' might equal May Ridge. Another possibility is 'Meidr' or 'Beidr' meaning track and 'im' meaning little. On the other hand, it may be a reference to an early Christian Saint named Nailtrum, or as mentioned in a 12th-century poem, its meaning may be "half of the shoulder" of a hill. A false etymology which has been cited is its stemming from a corruption of "My Dream".
The community is bordered by the communities of: Trelech; Abernant; Newchurch and Merthyr; St Clears; Llangynin; and Llanwinio, all being in Carmarthenshire.