Dafydd is a Welsh masculine given name, related to David, and more rarely a surname. People so named include:
Contents
Given name
Medieval era
Ordered chronologically
Dafydd ab Owain Gwynedd (c. 1145 – 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 (fl. 1340–1390), Welsh poet
Dafydd Benfras (fl. 1230–1260), 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) (fl. c. 1400–c. 1490), Welsh poet
Dafydd Nanmor (fl. 1450–1490), Welsh poet
Dafydd ab Edmwnd (fl. c. 1450–1497), Welsh poet
Dafydd ap Gruffydd (poet) (fl. c. 1600), 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
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 c. 1990), Welsh writer
Myrddin ap Dafydd (born 1956), Welsh editor and prifardd (Chief Bard)



