Elfyn

Elfyn is a Welsh name and may refer to:

Given name:
 * Elfyn Edwards (born 1960), Welsh former professional footballer
 * Elfyn Evans (born 1988), Welsh rally driver
 * Elfyn Lewis (born 1969), Welsh painter and National Eisteddfod of Wales Gold Medallist
 * Elfyn Llwyd (born 1951), Welsh barrister and politician
 * Elfyn Richards (1914–1995), Welsh professor, aeronautical engineer and acoustical engineer

Surname:
 * Beli ap Elfyn, Welsh for Beli II of Alt Clut (died 722), 8th century king of Strathclyde
 * Bethan Elfyn, Welsh radio and television presenter
 * Menna Elfyn FRSL FLSW (born 1952), Welsh poet, playwright, columnist writing in Welsh