Llandeilo (Welsh pronunciation: [ɬanˈdeilɔ] ⓘ) is a town and community in Carmarthenshire, Wales, situated at the crossing of the River Towy by the A483 on a 19th-century stone bridge.

[2] The newspaper praised the town as a ‘sophisticated shopping destination and a great showcase for local arts and crafts’.

[3] Roman soldiers were active in the area around Llandeilo around AD74, as evidenced by the foundations of two castra discovered on the grounds of the Dinefwr estate.

A small civil settlement developed outside the gates of the fort and may have continued in use as the embryonic town after the Romans left in around AD120.

The discovery of fragments of two large Celtic crosses from this period provides further testimony to Llandeilo's importance and indeed prestige as an early ecclesiastical centre.

[9] The estate of Golden Grove lies near the town, and further away, the impressive Carreg Cennen Castle, another Welsh stronghold.

By the early 12th century, Llandeilo came under the patronage of the Bishopric of St David's, an ecclesiastic borough that became responsible for the affairs of the town including its development as an important medieval market centre to an extensive agricultural hinterland.

[11] Nearby Carreg Cennen Castle was besieged by Yorkist forces in 1461 during the Wars of the Roses and partially demolished.

[13] In the middle of the seventeenth century, Llandeilo was in the area of influence of the royalist general Sir Henry Vaughan.

Four people, one of them a boy, were drowned when the 05:27 train from Swansea to Shrewsbury plunged off the damaged Glanrhyd Bridge into the river.

The town council is based at Hengwrt (Old Courthouse) at 8 Carmarthen Street, being the former Shire Hall, built in 1802.

[22] In 1859, a local government district called Llandilo was established covering the central part of the parish around the town itself.

The town hosted a celebrity football event that took place between 2015 and 2017 to help raise funds for Ty Hafan children's hospice.

Celebrities who took part in the event included EastEnders actor Matt Lapinskas, Former Blackburn & Scotland defender Colin Hendry, Big Brother runner-up Glyn Wise, former Wales rugby player Mark Taylor, and Everton & Wales legend Neville Southall.

In 2020, town mayor, Owen James, said “As it stands it’s simply dangerous for people to come into Llandeilo.

[48] A freeze on construction of new roads in Wales did not include the bypass, which the Welsh Government has estimated to cost £50m.