Seán

Cillian

Old Irish · “Probably derived from the Old Irish "cell" meaning "church" combined with a diminutive suffix, giving the sense of "associated with the church" or "little church". The name was borne by the 7th-century Irish saint Killian of Würzburg, who evangelised in Franconia and was martyred there, spreading Irish Christianity across continental Europe.”

Declan

Old Irish · “Possibly derived from the Old Irish "Deaglán" or "Diaglán", with the most accepted interpretation being "full of goodness" or "man of prayer", though an alternate reading suggests "full of God" from "Dia" (God). Saint Declan of Ardmore was one of the earliest Christian missionaries in Ireland, predating Saint Patrick, and his name has been honoured in the Munster province for over fifteen centuries.”

Conor

Irish · “Anglicised form of the Irish "Conchobar" or "Conchobhar", derived from "con" (dog or wolf, used as an honorific for a great warrior) and "cobhar" (desiring or loving) — together possibly meaning "lover of hounds" or "wolf-lover". Conchobar mac Nessa was the king of Ulster in the Ulster Cycle of Irish mythology, the lord who ruled over the great warriors including Cúchulainn.”

Padraig

Irish · “The Irish form of Patrick, derived from the Latin "Patricius" meaning "nobleman" or "of noble birth", from "pater" (father). Saint Patrick (c. 385–461 AD), the patron saint of Ireland, was a Romano-British missionary who became the most celebrated figure in Irish Christianity. The Irish form Pádraig has been used in Ireland continuously since the early medieval period.”

Seamus

Irish · “The Irish form of James, which derives from the Late Latin "Jacomus", a variant of "Jacobus", from the Hebrew "Ya'aqov" (Jacob) meaning "supplanter" or "he who follows at the heel". Séamus has been used in Ireland since the Norman introduction of the name James, and it has become one of the most recognisably Irish masculine names internationally, associated with Irish poetry, politics, and cultural identity.”

Éabha

“The Irish form of Eve, from the Hebrew "Chavah" meaning "living" or "life-giver". In Irish Gaelic the name takes the form Éabha, pronounced quite differently from the English Eve, and has been used in Ireland since the early Christian period. In Irish tradition Éabha (Eve) is also associated with various legendary and mythological figures, and the name enjoyed a significant revival in Ireland during the twentieth-century Gaelic language revival.”

Reagan

“An anglicised form of the Irish surname "Ó Riagáin" or "Ó Reagáin", derived from the Old Irish "riagán" possibly meaning "little king" or from "rí" (king) combined with a diminutive suffix. The name transitioned from a patronymic surname to a given name through the Irish-American tradition of using family surnames as first names, a practice that preserved ancestral Celtic identity through generations of the diaspora.”

Breana

“A modern variant spelling of Brianna, the feminine form of Brian, an Irish name of disputed origin — likely from a Celtic root meaning "high," "noble," or "hill." The name Brian was borne by the legendary Irish High King Brian Boru (941–1014), which cemented its prestige in Irish tradition. Breana is the softer, more contemporary rendering of this lineage.”

Caitlin

“The Irish form of Catherine, which entered Ireland from the Norman French "Cateline", itself from the Latin "Katharina" and Greek "Aikaterinē". Caitlín became fully naturalised in Ireland and is treated as a native name. It was famously borne by Caitlin Thomas, the Welsh wife of Dylan Thomas, whose memoir "Leftover Life to Kill" became a celebrated document of artistic grief and survival.”

Eileen

“An anglicised form of the Irish "Eibhlín", which is itself an Irish adaptation of the Norman French "Aveline" or Old High German "Avelin", possibly meaning "wished-for child". Eibhlín entered Ireland with the Normans in the twelfth century and became fully naturalised, achieving a special place in Irish-language poetry — the lament "Caoineadh Airt Uí Laoghaire" features an Eibhlín whose grief became one of the great poems of the Irish oral tradition.”

Caitríona

“Irish form of Catherine or Katherine, derived from the Greek "Aikaterine" whose etymology is uncertain but may be connected to the Greek "katharos" meaning "pure". Caitríona is the specifically Irish Gaelic spelling distinguishing it from Catriona (Scottish Gaelic) and Catherine (English). It has been a consistently popular feminine name in Ireland and among the Irish diaspora.”