Eoin

{{Wiktionary|Eoghan|Eòin}}

Eoin ({{IPA|ga|oːnʲ|pron}}) is a masculine Irish-language given name. The Scottish Gaelic equivalent is Eòin ({{IPA|gd|jɔːɲ|pron}}) and both are closely related to the Welsh {{lang|cy|Ioan}}. It is also cognate with the Irish {{lang|ga|Seán}} and English John. In the Irish language, it is the name used for all Biblical figures known as John in English, including John the Baptist and John the Apostle.

{{lang|ga|Eoin|italic=no}} and {{lang|gd|Eòin|italic=no}} are different names from {{lang|ga|Eoghan|italic=no}}/{{lang|gd|Eòghan|italic=no}}. The Old Irish name Eógan is generally considered to be a derivation of the Greek and Latin name {{lang|gel-Latn|Eugenes}}, meaning "noble born".Surnames of the United Kingdom (1912), reprinted for Clearfield Company, INC by Genealogical Publishing Co. INC, Baltimore 1995, 1996. Cormic gives this origin for Eogan (one MS, Eogen); and Zimmer considers Owen to be borrowed from Latin {{lang|la|Eugens}}, as noted by MacBain, p. 400. The mediaeval Latinization of Owen as {{lang|la|Oenus}} led to a belief that the etymology was the Welsh and Breton {{lang|cy|oen}}, "lamb". With much stronger reason it was at one time considered that the name represented Irish {{lang|ga|eoghunn}} = Gael. {{lang|ga|Ogan-}} [f. Old Irish {{lang|sga|oc-}} Welsh {{lang|cy|og}}, young], ‘youth’. Surnames of the United Kingdom cites Tomás Ua Concheanainn, {{lang|ga|Mion-Chomhrádh}} (p. 126), that "{{lang|ga|Eóghan}} is a diminutive of {{lang|ga|Eóghainin}}, = Owain, Eugene"Morgan, T.J. and Morgan, Prys, Welsh Surnames, University of Wales, 1985, Owain (Owen, Bowen, Ednowain). According to T.J. Morgan in Welsh Surnames (page 172/173) Owen is a derivation of the Latin {{lang|la|Eugenis}} > Old Welsh {{lang|owl|Ou(u)ein}}, {{lang|owl|Eug(u)ein}} ... 'variously written in Middle Welsh as {{lang|wlm|Ewein, Owein, Ywein}}. LL gives the names {{lang|wlm|Euguen, Iguein, Yuein, Ouein}}. The corresponding form in Irish is {{lang|ga|Eoghan}}. Additionally, another Latinized variation of the name Owen is {{lang|la|Audoenus}} in certain parish registers.”As cited by T.J. Morgan in Welsh Surnames, page 172