Gwilym
Gwilym is a Welsh given name and surname, related to William, Guillaume, and others in a number of other languages.
Given name
- Gwilym ab Ieuan Hen, Welsh language poet
- Gwilym Davies (minister) CBE, Welsh Baptist minister
- Gwilym Edwards, Welsh Presbyterian minister
- Gwilym Ellis Lane Owen, Welsh philosopher
- Gwil Owen, American singer/songwriter
- Gwilym Gibbons, British arts leader
- Gwilym Gwent, Welsh-born composer in the United States
- Gwilym Jenkins, British statistician and systems engineer
- Gwilym Jones, British Conservative politician
- Gwilym Kessey, Australian cricketer
- Gwilym Lee, British actor
- Gwilym Lloyd George, 1st Viscount Tenby, politician and UK cabinet minister
- Gwilym Thomas Mainwaring, Welsh rugby player
- Gwilym Owen Williams, Anglican Archbishop of Wales from 1971 to 1982
- Gwilym Prys Davies, Baron Prys-Davies, Welsh politician
- Gwilym Puw, Welsh Catholic poet and Royalist officer
- Gwilym R. Jones, awarded three literary awards at the National Eisteddfod of Wales
- Gwilym Rhyfel, Welsh language poet and warrior
- Gwilym Roberts, British Labour Party politician
- Gwilym Simcock, British pianist and composer
- Gwilym Tew, Welsh language poet and manuscript copyist
- Gwilym Tilsley, Welsh poet
- Gwilym Went, Welsh cricketer
- William Rees (Gwilym Hiraethog), Welsh poet and author
- William Thomas (Gwilym Marles), Welsh minister and poet
Surname
- Dafydd ap Gwilym, Welsh poet
- Eurfyl ap Gwilym, Welsh Plaid Cymru politician
- Gwynn ap Gwilym, Welsh language poet, novelist, editor and translator
- Lisa Gwilym, Welsh broadcaster
- Lowri Gwilym, Welsh television and radio producer
- Meinir Gwilym, Welsh-language pop and folk singer
- Mike Gwilym, Welsh actor
- Robert Gwilym, Welsh actor
- Tich Gwilym, Welsh guitarist