Shane

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.”

Brendan

Irish / Old Welsh · “Anglicised form of the Irish "Breandán", which derives from the Old Welsh "breenhin" or the Brittonic "brennos" meaning "prince" or "king". The name is most famously associated with Saint Brendan the Navigator (c. 484–577 AD), an Irish monk from County Kerry whose legendary ocean voyage — the "Navigatio Sancti Brendani" — describes a fantastic seven-year journey across the Atlantic, possibly reaching the Americas centuries before Columbus.”

Niall

Old Irish · “An Old Irish name of debated etymology — most scholars derive it from a Proto-Celtic root meaning "champion", "cloud", or possibly "passionate". It is most famously borne by Niall of the Nine Hostages (Niall Noígíallach), the legendary High King of Ireland from around the 4th–5th century whose descendants, the Uí Néill dynasty, dominated Irish politics for centuries. Genetic studies suggest a remarkable proportion of men with Irish heritage descend from him.”

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.”

Brennan

“An Anglicised form of the Irish surname Ó Braonáin, meaning "descendant of Braonán", where Braonán is a diminutive of "braon" meaning "moisture", "drop", or "sorrow". The name is associated with Saint Brendan the Navigator (Naomh Bréanainn), the 6th-century Irish monk who, according to legend, sailed across the Atlantic to discover a western paradise. When used as a first name, it carries both the sorrow-drop etymology and the adventuring saint.”

Kevin

“Anglicised from the Irish Caoimhín, composed of the Old Irish elements caomh ("dear, gentle, kind") and -gein ("birth"), meaning roughly "kind birth" or "beloved child." The name was popularised by Saint Kevin of Glendalough, a 6th-century Irish monk known for his asceticism and love of nature. Kevin became widely used in English-speaking countries in the 20th century.”

Kiera

“An anglicised variant of the Irish "Ciarán" or the feminine "Ciara", from the Old Irish "ciar" meaning "dark", "black", or "dark-haired". Kiera represents the anglicised spelling used most commonly in the Irish diaspora, particularly in North America, where it gained prominence through Irish-American communities and the actress Keira Knightley (an alternative spelling).”

Colleen

“From the Irish "cailín" meaning "girl" or "young woman". Uniquely among Irish names, Colleen originated not in Ireland but in the Irish diaspora of Australia and America, where English-speaking immigrants adopted the Irish word for "girl" as a given name. It was popularised through the theatrical phenomenon "The Colleen Bawn" (1860) by Dion Boucicault, the most performed play of the nineteenth century.”

Mairéad

“The Irish form of Margaret, from the Greek "Margarites" meaning "pearl". Mairéad is the native Irish-language version of the name, distinct from the borrowed anglicised "Margaret" and carrying a distinctly Irish-Gaelic identity. The name has been borne by Mairéad Corrigan Maguire, the Northern Irish peace activist who co-founded the Community of Peace People and was awarded the Nobel Peace Prize in 1976.”