Last updated: March 2026

Character Name

Diarmait

Meaning — The original Old Irish spelling of Diarmuid, from elements possibly meaning "without envy" from "di" (without) and "airmit" (jealousy or envy). Diarmait mac Cerbaill was the last High King of Ireland to hold the ancient pagan ceremony of the "Feis Temro" (Feast of Tara) around 560 AD. The name appears across Irish history and mythology and reflects the older, more austere orthographic tradition.·Old Irish origin·Male·DEER-mit

Diarmait Diarmait in its older spelling projects the archaic authority of the early Irish kingdom — a name for characters deeply embedded in the pre-Norman Gaelic world, defined by an older code of honour and a fiercer, less mediated relationship with the land and its gods. Characters named Diarmait tend to be formidably masculine in the old heroic manner, passionate and loyal with an intensity that admits no half-measures.

Best genres for Diarmait

Historical FictionFantasyMythologyAdventureLiterary Fiction

Famous characters named Diarmait

Diarmait mac Máel na mBó

The Irish Annals / Historical Tradition — Various medieval Irish chroniclers

The 11th-century king of Leinster who was a major patron of the church and one of the great rulers of pre-Norman Ireland.


Variations & nicknames

DiarmaitDiarmuidDermot

Pairs well with

Diarmait mac CerbaillDiarmait O'BrienDiarmait McCarthyDiarmait MacAllisterDiarmait FlanaganDiarmait Brennan

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Related names

Fionn

Old Irish · “Derived from the Old Irish "find" meaning "white", "fair", or "fair-haired". It is one of the most celebrated names in Irish mythology as the given name of Fionn mac Cumhaill, the legendary leader of the Fianna warrior band. Fionn gained supernatural wisdom as a boy by accidentally tasting the Salmon of Knowledge, and he became Ireland's greatest hero and protector.”

Fergus

Old Irish · “Derived from the Old Irish elements "fer" meaning "man" and "guss" meaning "vigour", "strength", or "force" — together meaning "man of vigour" or "strong man". The name was borne by several early rulers of Ireland and Dál Riata, and most notably by the hero Fergus mac Róich of the Ulster Cycle, a warrior of extraordinary physical power and loyal character.”

Cormac

Old Irish · “Derived from the Old Irish "corb" meaning "chariot" (or possibly "raven") and "mac" meaning "son" — giving the meaning "son of the chariot" or possibly "charioteer's son". The name was borne by the legendary High King Cormac mac Airt, considered one of Ireland's greatest and wisest kings, whose court at Tara became associated with an idealised golden age of justice and prosperity.”

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.”


More Old Irish names

Méabh

“The older spelling form of Maeve, derived from Old Irish "medb" meaning "she who intoxicates" or "mead" — cognate with the drink associated with sovereignty. Méabh is the great warrior queen of Connacht in the Ulster Cycle, the driving force behind the Táin Bó Cúailnge (Cattle Raid of Cooley). She is one of the most powerful and complex female figures in all Celtic mythology — a queen who commands armies, takes and dismisses husbands at will, and matches her political authority with personal sovereignty.”

Niamh

“Derived from the Old Irish word "niamh" meaning "bright" or "radiant". The name belongs to one of the most celebrated figures of Irish mythology, Niamh of the Golden Hair, a princess of Tír na nÓg (the Land of Eternal Youth) who fell in love with the poet-warrior Oisín and carried him away on her white horse across the sea.”

Rónán

“Derived from the Old Irish "rón" meaning "seal" combined with the diminutive suffix "-án" — giving the meaning "little seal" or "young seal". In Irish tradition, seals were often believed to be fallen angels or transformed humans (selkies), and the name carries overtones of the liminal space between the natural and supernatural worlds. Several Irish saints bore the name.”

Fionnuala

“Derived from the Old Irish "Fionnghala" composed of "fionn" meaning "white" or "fair" and "guala" meaning "shoulder" — together meaning "white shoulder" or "fair-shouldered". In the Irish legend of the Children of Lir, Fionnuala is the eldest daughter of the sea god Lir, transformed into a swan by her jealous stepmother Aoife and forced to wander the waters of Ireland for nine hundred years.”

Conchobar

“From the Old Irish "Conchobar" (anglicised as Conor, Connor, or Cornelius), possibly meaning "lover of hounds" (from "con", hound/dog) or "high will" (from "con-", intensive prefix, and "cobor", desiring). In Irish mythology, Conchobar mac Nessa was the legendary King of Ulster and patron of the Red Branch Knights, presiding over the great warriors of the Ulster Cycle including Cúchulainn — one of the most complex and morally ambiguous kings in the Irish tradition.”

Ciara

“Derived from the Old Irish "ciar" meaning "dark", "black", or "dark-haired". Saint Ciara of Kilkeary was a sixth-century Irish saint, and the name appears throughout early Irish ecclesiastical records. The meaning reflects an older Celtic aesthetic that prized dark colouring, and the same root gives the male name Ciarán, meaning "little dark one".”


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