Blaenavon (Welsh: Blaenafon) is a town and community in Torfaen county borough, Wales, high on a hillside on the source of the Afon Lwyd.

Parts of the town and surrounding country form the Blaenavon Industrial Landscape, selected as a World Heritage Site by UNESCO in 2000.

Blaenavon House, a mansion constructed in 1798 by Thomas Hopkins, was repurposed as a hospital in 1924, supported by the subscriptions of local iron and coal workers.

It was badly vandalised and stripped of its lead work, slate roof and original interiors, and was placed on the Buildings At Risk register.

[5] The Blaenavon Coal and Iron Company developed the Big Pit coalworks with adjoining steel works particularly for rail manufacture.

[8] Government, publishers and mainly Welsh writers sought in 2003 to attract more visitors by introducing Blaenavon as Wales' second "book town" (the first being Hay-on-Wye on the English border).

Parts of the town and surrounding country form the Blaenavon Industrial Landscape, selected as a World Heritage Site by UNESCO in 2000.

The lower line's passenger service was among many in Gwent (Monmouthshire) which Ministry of Transport de-classified papers reveal were axed because of rail congestion in the Newport area following the newly opened Llanwern steelworks.

[12] Notable people born in Blaenavon include the Broadway and film actor E. E. Clive, award-winning mystery writer Dorothy Simpson, and international rugby union players Mark Taylor, Ken Jones (also an Olympic athlete), John Perkins, Chris Huish, Terry Cobner and Colin Evans (rugby) Nick Thomas-Symonds, elected MP for Torfaen in 2015, was brought up in the town.