Dafydd is a Welsh masculine given name, related to David, and more rarely a surname. People so named include:

Given name

Medieval era

:Ordered chronologically

  • Dafydd ab Owain Gwynedd (1203), Prince of Gwynedd
  • Dafydd ap Gruffudd (1238–1283), Prince of Wales
  • Dafydd Goch, said to be the illegitimate son of Dafydd ap Gruffudd
  • Dafydd ap Gwilym (c. 1315/1320–c. 1350/1370), Welsh poet
  • Dafydd ap Llywelyn (1215–1246), Prince of Gwynedd and first Prince of Wales
  • Dafydd Bach ap Madog Wladaidd (), Welsh poet
  • Dafydd Benfras (), Welsh court poet
  • Dafydd Ddu o Hiraddug (died 1371), Welsh poet, grammarian and cleric
  • Dafydd Gam (1380–1415), Welsh soldier and nobleman who died at the Battle of Agincourt
  • Dafydd ab Ieuan or David Holbache (died 1422/3), Welsh politician
  • Dafydd Gorlech (c. 1410–c. 1490), Welsh poet
  • Dafydd Llwyd ap Llywelyn ap Gruffudd (Dafydd Llwyd o Fathafarn) (), Welsh poet
  • Dafydd Nanmor (), Welsh poet
  • Dafydd ab Edmwnd (), Welsh poet
  • Dafydd ap Gruffydd (poet) (), Welsh poet

Modern era

:Ordered alphabetically

  • Dafydd Trystan Davies (born 1974), Welsh academic and politician
  • Dafydd Elis-Thomas (1946–2025), Welsh politician
  • Dai Henwood (born 1978), New Zealand stand-up comedian and television host
  • Dafydd Hewitt (born 1985), Welsh retired rugby union player
  • Dafydd Howells (born 1995), Wales rugby union player
  • Dafydd ab Hugh (born 1960), American science fiction author born David Friedman
  • Dafydd Ieuan (born 1969), Welsh musician and producer
  • Dafydd Ifans (born 1949), Welsh novelist and translator
  • David Richards (Dafydd Ionawr) (1751–1827), Welsh poet
  • Dafydd Iwan (born 1943), Welsh folk singer and politician
  • Dafydd James (born 1975), Wales retired rugby union player
  • Dafydd Jenkins (legal scholar) (1911–2012), Welsh barrister, activist, and legal scholar and historian
  • Dafydd Jenkins (rugby union) (born 2002), Welsh rugby union player
  • Dafydd Jones (disambiguation)
  • David Edward Lewis (1866–1941), Welsh businessman and philanthropist
  • Dafydd Llywelyn (composer) (1939–2013), Welsh composer, pianist, conductor and teacher
  • Dafydd Llywelyn (politician) (born 1976), Welsh politician and Dyfed-Powys Police and Crime Commissioner
  • Dafydd Elystan Morgan, Baron Elystan-Morgan (1932–2021), Welsh politician
  • Dafydd Rogers (born 1969), West End and Broadway theatre producer
  • Dafydd Rowlands (1931–2001), Welsh Congregational minister, lecturer, writer and poet
  • Dafydd Stephens (1942–2012), Welsh audiological physician and professor
  • Dafydd Wigley (born 1943), Welsh politician
  • Dafydd Williams (born 1954), Canadian physician and retired astronaut

Surname

  • Catrin Dafydd, Welsh writer, winner of the Crown at the 2018 National Eisteddfod
  • Einir Dafydd, Welsh singer who won the third series of the television talent show Wawffactor and the 2007 Cân i Gymru competition
  • Fflur Dafydd (born 1978), Welsh novelist, singer-songwriter and musician
  • Guto Dafydd (born ), Welsh writer
  • Myrddin ap Dafydd (born 1956), Welsh editor and prifardd (Chief Bard)

See also

  • Dewi (disambiguation)
  • David (name)
  • Dafydd ap Gwilym Society, known as Y Dafydd
  • Daffyd Thomas, character in the Little Britain television and radio sketch show