Einion, the Welsh form of the Latin Ennianus, is a male Welsh given name and may refer to:
Einion Offeiriad ("Einion the Priest") (died 1356), Welsh poet and grammarian
Einion ap Gwalchmai (1202–1223), Welsh court poet
Einion ap Gwgon ( ), Welsh court poet
Einion ap Gollwyn, (possibly legendary) Welsh prince of the eleventh century
Einion Wan ( ), Welsh court poet
Saint Einion Frenin (), a son of Owain Ddantgwyn who reigned as a local king in Gwynedd Einion Yrth ap Cunedda (; reigned from the 470s), king of Gwynedd
See also
Cefn Einion, small dispersed village in South Shropshire, England
Coed Cwm Einion, a woodland to the east of the village of Furnace, Wales
Anian (disambiguation) Anianus (disambiguation) Eifion (disambiguation) Bennion, a surname derived from Einion.