|Loughor shown within Swansea|
|Population||4,991 (2001 Census)|
|OS grid reference|
|Sovereign state||United Kingdom|
|Fire||Mid and West Wales|
Loughor (//) (Welsh: Casllwchwr) is a town in the City and County of Swansea, Wales, within the historic county boundaries of Glamorgan, Wales. It lies on the estuary of the River Loughor. The town has a community council under the name Llwchwr. In 2014, it was rated one of the most attractive postcode areas to live in Wales. The town is bordered by the communities of Bynea in Carmarthenshire, Grovesend(Pengelli), Gowerton(Tre-Gwŷr), and Gorseinon.
The town has had its own lifeboat station since 1969, situated near the road bridge. The current lifeboat is a Ribcraft 5.85m RIB.
Loughor later grew as a port, while in the early 20th century the main industries were large tin and steel works. About 1800, John Vivian (1750–1826) of Truro, Cornwall, became managing partner in the copper works at Penclawdd and Loughor was then owned by the Cheadle Brasswire Company of Staffordshire. The Vivian family eventually ran large copper-mining, copper-smelting and trading businesses in and around Swansea (Vivian & Sons) and throughout the 19th century did much to develop Swansea as a city.
Loughor town can be divided into two areas defined by the present-day electoral wards of Lower Loughor and Upper Loughor which have separate histories. Lower Loughor lies nearer the sea on low ground, whilst Upper Loughor lies on higher ground. Loughor initially developed around the Norman castle in what is now the Lower Loughor ward. Upper Loughor began as a distinct settlement, initially around what is now the Glebe Road area and was well established as a separate town by the mid 19th century. Loughor today is mostly a commuter town for Swansea and Llanelli via the Loughor bridge, and has merged with the neighbouring town of Gorseinon.
Local schools in the town include Tre Uchaf Primary School and Casllwchwr Primary School. Sited opposite the Tre Uchaf Primary is one of the sites of Gower College Swansea.
James Henry Govier (1910–1974), the British painter, etcher and engraver of the Swansea School, produced a number of images of Loughor. He lived at Gorseinon and there is work of his in the Glynn Vivian Art Gallery at Swansea, the National Museum of Wales, the National Library of Wales, and several other national collections. See Gorseinon and Oakley for more detail.
- Irma Chilton (1930–1990), children's writer in English and Welsh
- Evan Roberts (1878–1951), minister, a major figure in the 1904–1905 Welsh Revival
- Swansea Art Gallery Catalogue, 1936
- The Gower Journal
- Who's Who in Art
- Dictionary of British Artists 1900–1950, by Grant M. Waters, 1975