Llandough (/lænˈdɒk/; Welsh: Llandochau Fach [ɬan'doːχaɨ vaχ]) is a village, community and electoral ward in the Vale of Glamorgan (Welsh: Bro Morgannwg), Wales, approximately 2.3 miles (3.7 km) south west of Cardiff city centre, and approximately 1.3 miles (2 km) north west of Penarth.

Until the mid-1960s, Llandough was a small farming and quarrying village but experienced an expansion involving the building of a large number of houses, a primary school, and a block of six shopping units.

It was designed by architect Samuel Charles Fripp of Bristol, and built by David Jones of Penarth for a cost of £2,600.

[5] To the west of the church are three fragmentary components of a well-fortified house dating from the 1420s or 1430s,[6] believed to have been built by John de Van.

Great House Farm stood alongside St Dochdwy's church, and was the site of a Celtic monastery and a missionary centre.

His remains were re-buried in St Dochdwy's churchyard and his visor and lance are now in Amgueddfa Cymru – Museum Wales.

The farm was opened on occasions for locals, schoolchildren, and visitors to learn about how people lived in the past.

Guglielmo Marconi slept here in 1897 while working on his wireless telegraphy experiments between Lavernock Point and Flat Holm.

[7] The site of a Roman villa was uncovered in 1979 when the housing association began work for blocks of flats.

A skeleton, skull and bones were found on the site, remains of a Romano-British family, possibly farmers.

[7] Baron's Court, originally known as Cogan Pill, is a late 15th or early 16th-century hall house with 19th-century additions.

It remained in the Herbert family, who also held St Fagans Castle, for many generations, becoming a farmhouse in 1642 with the grand hall converted to a barn.

Both the original and the current halls have been used for village functions, except during the World War II years when the building was used by the Royal Air Force.

Built in 1859 as the successor to the Rose Cottage meeting house, the main building was constructed of stone from Llandough quarry with a slate roof.

The terraced houses were constructed from square cornered limestone, with slate roofs, and store forecourt walls.

Between 1830 and 1971, 1 Lewis Road has operated as a village shop, a bakery, a post office, and a grocers.

The school building was constructed in stone with a slate roof and brick-edged windows and was planned to accommodate between 50 and 60 children.

[17] Pound Cottage is a grade II listed building and was constructed around 1830 on land belonging to the Bute estate.

It was renamed as 'University Hospital Llandough' in 2008 to reflect its links with the Cardiff University School of Medicine.

The demographic figures date from the United Kingdom Census 2011 are as follows:[22] Llandough currently has one primary school.

King George V Playing Field is the main park and recreational area in Llandough.

The multi-use games area was constructed in 2020 and is suitable for a range of activities, including football and basketball.

There is an OVO bikes (operated by Nextbike) hire station within the grounds of University Hospital Llandough offering electrically assisted bicycles.

The council manage Llandough's allotments site, the village fete, and community engagement.

[28] Vaughan Gething represents Cardiff South and Penarth in the Senedd (Labour & Co-operative Party), succeeding Lorraine Barrett.

The MP for Cardiff South and Penarth is Stephen Doughty (Labour & Co-operative Party) who was re-elected on 10 December 2019.