Éogan or Eógan is an early Irish male name, which also has the hypocoristic

Hypocoristic

A hypocorism is a shorter form of a word or given name, for example, when used in more intimate situations as a nickname or term of endearment.- Derivation :Hypocorisms are often generated as:...

 and diminutive

Diminutive

In language structure, a diminutive, or diminutive form , is a formation of a word used to convey a slight degree of the root meaning, smallness of the object or quality named, encapsulation, intimacy, or endearment...

 form Eóganán and Eóghainin. In more modern forms of Irish it is written as Eóghan or Eoghan. The name is often associated with the Greek name Eugenes

Eugene (given name)

Eugene is a common first name that comes from the Greek εὐγενής , "noble", literally "well-born". Gene is a common shortened form...

, meaning noble born. Etymology

Etymology

Etymology is the study of the history of words, their origins, and how their form and meaning have changed over time.For languages with a long written history, etymologists make use of texts in these languages and texts about the languages to gather knowledge about how words were used during...

ist disagree as to the origin of Eoghan, with Dr. Rachel Bromwich

Rachel Bromwich

Rachel Bromwich was a British scholar. Her focus was on medieval Welsh literature, and was Emeritus Reader in Celtic Languages and Literature at the Department of Anglo-Saxon, Norse and Celtic at Cambridge until her death...

 commenting that Eoghan is a derivation of the Latin Eugenius, and the encyclopedia Surnames of the United Kingdom citing T. Ua Concheanainn, Mion - Chomhrádh (p. 126), that Eóghan equates to Owain and Eugene. However, the encyclopedia Irish Names (1981, 1990) dispute any connection with Eugene and derive the name .

The name "corresponds" to the Welsh

Welsh language

Welsh is a member of the Brythonic branch of the Celtic languages spoken natively in Wales, by some along the Welsh border in England, and in Y Wladfa...

 Owen

Owen (name)

Owen is an anglicized variant of the Welsh name Owain, and may appear as both a personal name and as a surname . Owen is cognate with Eugene meaning noble-born. The name corresponds with Irish "Eoghan". An alternate but less likely origin of the name is with the Celtic name "Esugenos", meaning...

.