Best Sibling Names for Costello

Names chosen to complement Costello — matching origin (Ireland), era, and style.

200 options103 girl110 boy

These sibling names share Costello's Ireland roots or similar popularity era, and start with a different letter to avoid alliteration.

All Names Girl Names (103)Boy Names (110)

a Gael, a person of Gaelic origin; a reference to 'Gale', meaning cheerful or merry

a strong one; a warrior

Costello & Michealene

Anglicized form of CAITLÍN.

From a surname which comes from two distinct sources. As an Irish surname it is a variant of REILLY. As an English surname it is derived from a place name meaning "rye clearing" in Old English.

Donard is derived from the Irish name 'Donard', which means 'world ruler' or 'chief'.

From an Irish surname which was derived from Ó Riain meaning "descendant of Rían". The given name Rían probably means "little king" (from Irish rí "king" combined with a diminutive suffix).

From an Irish surname, an Anglicized form of Ó Cuinn meaning "descendant of CONN".

A beloved name with deep roots

Anglicized form of Irish Deaglán, which is of unknown meaning. Saint Declan was a 5th-century missionary to Ireland.

From an Irish surname which was derived from an Anglicized form of the given name SLUAGHADHÁN.

From the Latin name Patricius, which meant "nobleman". This name was adopted in the 5th-century by Saint Patrick, whose birth name was Sucat.

Light, torch, bright one

From a surname: either the English surname DELANEY (1) or the Irish surname DELANEY (2).

Dark, black, or a descendant of the dark-haired one

Noble, bright; the radiant one.

Attractive, beautiful

descendant of the headstrong one

Derived from the Gaelic surname 'O hEflinn', meaning 'descendant of Eflin'.

Diminutive of BRIDGET.

From the islet by the river

From an Irish surname which was derived from Ó Súilleabháin meaning "descendant of Súilleabhán". The name Súilleabhán means "little dark eye" in Irish.

Descendant of the fearless one

A form of the name Michael, meaning 'who is like God?'

From the grassland village

from a place called 'O' hEireamhóin', derived from 'heir' meaning 'sorrow' or 'battle'

Anglicized form of SEÁN.

Meaning 'from the dark place'.; Derived from the Gaelic 'Ó Duargain', which means 'descendant of Duargan'.

Feminine form of BRIAN. This name was used by Edmund Spenser in 'The Faerie Queene' (1590). The name was not commonly used until the 1970s, when it rapidly became popular in the United States.

descendant of the fair one

From the -shawn family of names

Sorrowful; broken-hearted

fame; bright; radiant

descendant of Caoinneach, meaning 'handsome' or 'attractive'

descendant of Donncha, meaning 'brown-haired' or 'dark'

a watercourse, or a river terrace

Descendant of Ríoghnach

A form of the name 'Gail', meaning 'joyful' or 'cheerful'.; Variant of 'Galen', meaning 'calm' or 'healer'.

Descendant of Dreánán

Descendant of Donnchadh, meaning 'brown warrior'.

A form of the name Deirdre

daughter of the river

tir na nognah, la tierra de la juventud (meaning: land of eternal youth)

descendant of Braonán

Defender; Descendant of Donn

The name is derived from the word 'dín', meaning 'fortress'.

A beloved name with deep roots

A variant of the name Nigel, derived from the Latin 'Nigellus', meaning 'little black one'.

Anglicized form of SIOBHÁN.

descendant of the red-haired one

derived from the surname meaning 'powerful' or 'mighty'.

Sorrowful; from the sea

Word derived from the Irish term for 'little girl'.

a poetic form of the word 'tadhg', meaning 'poet' or 'philosopher'

Gentle, beautiful; Crowned with beauty

Narrow or skinny; Slender or thin

The one who is born to the youth

Derived from 'Ailis,' meaning noble or kind

Goddess of Love, Love, or Grain (from 'gránn', meaning 'grain')

Anglicized form of MUIRNE.

descendant of Caodhán

Descendant of Braonán

Variant of KAYLEE. This is also a common Anglicized form of the Gaelic word ceilidh, a traditional social gathering and dance.

from the fairy palace; blessed by good fortune

descendant of a champion.

handsome, gentle, or beloved

Meaning 'golden princess'.

Derived from the place name meaning 'the river Bandon'

Anglicized form of EIREANN. It has been used as a given name since the middle of the 20th century.

Derived from the name Siobhán, meaning 'God is gracious'.

descendant of Caomhín

From the headland; fair or attractive.

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Patrickjames

Costello & Patrickjames

Boy

Ireland

from 'Patricius', meaning nobleman or patrician.; James is derived from the Hebrew name Yaakov, meaning supplanter.

from the Gaelic 'Searraidhe,' meaning 'descendant of Searrat.'

Costello & Kathleenmary

Girl

Ireland

pure; sea of bitterness

Descendant of the servant of a champion.

a descendant of Caedán

From an Irish surname which was derived from Ó Fallamhain meaning "descendant of Fallamhan". The given name Fallamhan meant "leader". It was popularized in the 1980s by a character on the soap opera 'Dynasty'.

soughing or tranquil river

from the land of Eógan, a given name.

sorrow, broken-hearted

Derived from 'sionnach,' meaning 'fox'

Derived from the Old English elements 'wald' meaning 'rule' and 'raed' meaning 'counsel'.

Anglicized form of CAOIMHE.

From the fairy palace.; A variant of the name Shailene.

Folk name meaning 'poet', a diminutive of the name Tadhg.

Famous; from the place of the fair; known

from the old oak tree

A combination of the name Niamh and the root -leen, suggesting brightness and radiance.

descendant of the warrior

Great queen or goddess

descendant of the red-haired one

a variant of Sinead or Jane

Son of the cord or rope maker; also, a surname that has become popular as a first name.

from the narrow wood; dweller near the woods

Derived from 'Tadhg', meaning 'poet' or 'philosopher'.

Dark-haired; a descendant of the dark one

From the valley of the river

descendant of Ciarán's servant

Best Sibling Names for Costello

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