Barry Council Office and Library is a local government building and public library located in King Square, Barry, Wales. The building, which was once the meeting place of Barry Municipal Borough Council, is a Grade II listed building.
Gladstone's Library, known until 2010 as St Deiniol's Library, is a residential library in Hawarden, Flintshire, Wales. It is a Grade I listed building.

Holyhead Market Hall, located in Holyhead, Anglesey, Wales, is a Grade II listed building built in 1855. It was commissioned by the local landowner and politician William Owen Stanley and built by J. Edwards Thomas. As well as housing the town's market it has historically been used as a law court, a military barracks, a mechanics' library and a boxing/wrestling venue. Located on the site of the old market cross and accessed from Stanley Street, the town's main throughfare, it was changed and improved in 1906. It is a two-storey building measuring 1,732 square metres and is built of local green shaley rubble with buff sandstone dressings and slate roofing. After 145 years of use the hall temporarily closed its doors, then became a furniture store and, fittingly, a grocery store. The building was listed in 1992, "for its importance to Holyhead and as a prominent mid C19 town centre building with a well preserved facade."

Monmouthshire Libraries are a collection of six libraries in Monmouthshire, Wales owned by Monmouthshire County Council. The libraries are located in Abergavenny, Gilwern, Monmouth, Usk, Caldicot and Chepstow.

The National Library of Wales, Aberystwyth, is the national legal deposit library of Wales and is one of the Welsh Government sponsored bodies. It is the biggest library in Wales, holding over 6.5 million books and periodicals, and the largest collections of archives, portraits, maps and photographic images in Wales. The Library is also home to the national collection of Welsh manuscripts, the National Screen and Sound Archive of Wales, and the most comprehensive collection of paintings and topographical prints in Wales. As the primary research library and archive in Wales and one of the largest research libraries in the United Kingdom, the National Library is a member of Research Libraries UK (RLUK) and the Consortium of European Research Libraries (CERL).
The Old Library is a Grade II* listed building in Cardiff, Wales. It is located in the centre of the city at the northern end of The Hayes. Originally the Cardiff Free Library, it was used as the city's Central Library until it was replaced in 1988. It has been used for other purposes since that time and is currently the home of the Cardiff Story museum and Menter Caerdydd, a community-based Menter Iaith organisation which works to raise the profile of the Welsh language in Cardiff.

The old Swansea Central Library in Swansea in Britain was a public lending and reference library located in Alexandra Road, in the Swansea city centre. The old library, a Grade II listed building, is now occupied by Swansea Metropolitan University's Welsh School of Architectural Glass.

Raglan Library was a library located in Raglan Castle in the county of Monmouthshire in south east Wales.