Richard Harrington (born 12 March 1975) is a Welsh actor.
Harrington was born in Gurnos and brought up in Heolgerrig, Merthyr Tydfil. He has had starring roles in the Welsh show Hinterland (known as Y Gwyll in Welsh), Bleak House, Jimmy McGovern's Gunpowder, Treason & Plot, and Gavin Claxton's comedy feature film The All Together. He has also had roles in Coronation Street, Spooks, Casualty, Holby City, Hustle, Dalziel and Pascoe, Silent Witness, Lark Rise to Candleford, and Poldark. He won a BAFTA Cymru Award for his portrayal of a young gay hustler in the BBC film Dafydd, part of the Wales Playhouse programme.
On stage, Harrington has toured with Fiction Factory/Y Cwmni's productions of Ed Thomas's plays House of America, Gas Station Angel and Stone City Blue. He also appeared in the 1997 film version of House of America.
Harrington speaks Welsh as a second language, having come from an English-speaking family but studied in a Welsh Medium school in Merthyr. He has said that filming Y Gwyll improved his fluency significantly. He has two children, Ralff and Ned, with former girlfriend Nerys Phillips, and one other, Moris Harrington, with partner Hannah Daniel.
Harrington took part in the 2012 and 2013 Snowdonia Marathon alongside his friend and fellow actor Mark Lewis Jones. They both ran Marathon Des Sables in 2014.
In 2015, Harrington won another BAFTA Cymru Award for his role as DCI Tom Matthias in Y Gwyll / Hinterland.
In April 2017, Harrington presented the BBC Two Wales programme Richard Harrington: My Grandfather's War, in which he followed the journey his grandfather had made through Spain in 1937 in order to fight against fascism in the Spanish Civil War.