Best Sibling Names for Sullivan
Names chosen to complement Sullivan — matching origin (Ireland), era, and style.
200 options94 girl120 boy
These sibling names share Sullivan's Ireland roots or similar popularity era, and start with a different letter to avoid alliteration.
Nora
Sullivan & Nora
GirlIreland
honor
#24 →
Riley
Sullivan & Riley
GirlIreland
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.
#43 →
Nolan
Sullivan & Nolan
BoyIreland
Noble, famous
#57 →
Maeve
Sullivan & Maeve
GirlIreland
Intoxicating.
#73 ↑
Quinn
Sullivan & Quinn
GirlIreland
From an Irish surname, an Anglicized form of Ó Cuinn meaning "descendant of CONN".
#86 →
Declan
Sullivan & Declan
BoyIreland
Anglicized form of Irish Deaglán, which is of unknown meaning. Saint Declan was a 5th-century missionary to Ireland.
#132 ↓
Brianna
Sullivan & Brianna
GirlIreland
Variant of BRIANA.
#152 →
Reagan
Sullivan & Reagan
GirlIreland
Descendant of Riagán
#168 ↓
Finn
Sullivan & Finn
BoyIreland
fair, white
#186 →
Brody
Sullivan & Brody
BoyIreland
ditch, muddy place
#204 ↓
Delaney
Sullivan & Delaney
GirlIreland
From a surname: either the English surname DELANEY (1) or the Irish surname DELANEY (2).
#233 ↑
Rory
Sullivan & Rory
UnisexIreland
red king
#242 ↑
Ronan
Sullivan & Ronan
BoyIreland
little seal
#290 ↓
Aidan
Sullivan & Aidan
BoyIreland
Little fire
#300 ↓
Teagan
Sullivan & Teagan
UnisexIreland
Attractive, beautiful
#309 ↓
McKenna
Sullivan & McKenna
GirlIreland
descendant of the headstrong one
#326 ↓
Desmond
Sullivan & Desmond
BoyIreland
From the grassland village
#399 ↓
Callahan
Sullivan & Callahan
UnisexIreland
little bright-headed
#460 ↑
Kieran
Sullivan & Kieran
BoyIreland
Little dark one
#477 →
Finnegan
Sullivan & Finnegan
BoyIreland
descendant of the fair one
#490 ↓
Cassidy
Sullivan & Cassidy
GirlIreland
From an Irish surname which was derived from Ó Caiside meaning "descendant of CAISIDE".
#496 ↓
Daigan
Sullivan & Daigan
BoyIreland
sorrow or difficulty
#502 →
Killean
Sullivan & Killean
BoyIreland
Slender or narrow
#505 →
Murphy
Sullivan & Murphy
UnisexIreland
Sea warrior
#519 ↑
Cianan
Sullivan & Cianan
BoyIreland
Ancient; a descendant of Cian.
#522 →
Coner
Sullivan & Coner
BoyIreland
a variation of the name Connor
#531 →
Drennan
Sullivan & Drennan
BoyIreland
Descendant of Dreánán
#533 →
Gráinne
Sullivan & Gráinne
GirlIreland
grain, love
#533 →
Fionnula
Sullivan & Fionnula
GirlIreland
White shoulder
#538 →
Blaney
Sullivan & Blaney
UnisexIreland
daughter of the river
#541 →
Cian
Sullivan & Cian
BoyIreland
Means "ancient" in Gaelic. This was the name of the mythical ancestor of the Cianachta in Irish legend. Cian was also the name of a son-in-law of Brian Boru.
#542 →
Aidann
Sullivan & Aidann
BoyIreland
little fire
#543 →
Brannick
Sullivan & Brannick
BoyIreland
Descendant of Bran
#547 →
Denin
Sullivan & Denin
BoyIreland
Defender; Descendant of Donn
#547 →
Kieley
Sullivan & Kieley
GirlIreland
slender, beautiful
#547 →
O'Conner
Sullivan & O'Conner
BoyIreland
A beloved name with deep roots
#552 →
Covan
Sullivan & Covan
BoyIreland
young warrior
#566 →
Rielley
Sullivan & Rielley
GirlIreland
descendant of the red-haired one
#567 →
Deiren
Sullivan & Deiren
BoyIreland
Sorrowful; from the sea
#576 →
Ryan
Sullivan & Ryan
BoyIreland
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).
#83 ↓
Kerlin
Sullivan & Kerlin
GirlIreland
Little dark one.
#586 →
Tieg
Sullivan & Tieg
BoyIreland
a poetic form of the word 'tadhg', meaning 'poet' or 'philosopher'
#588 →
Dregan
Sullivan & Dregan
BoyIreland
Little druid
#592 →
Cillian
Sullivan & Cillian
BoyIreland
warrior
#594 ↑
Caelen
Sullivan & Caelen
BoyIreland
Irish
#594 →
Ailse
Sullivan & Ailse
GirlIreland
Noble
#597 →
Gael
Sullivan & Gael
BoyIreland
a Gael, a person of Gaelic origin; a reference to 'Gale', meaning cheerful or merry
#99 ↑
Keilan
Sullivan & Keilan
BoyIreland
Narrow or skinny; Slender or thin
#603 →
Aylish
Sullivan & Aylish
GirlIreland
Derived from 'Ailis,' meaning noble or kind
#611 →
Coilin
Sullivan & Coilin
BoyIreland
from 'Caolán', meaning 'slender' or 'narrow'
#612 →
Padrick
Sullivan & Padrick
BoyIreland
Noble, patrician
#614 →
Donovann
Sullivan & Donovann
BoyIreland
Dark warrior
#624 →
Connor
Sullivan & Connor
BoyIreland
lover of hounds
#126 ↓
Keegan
Sullivan & Keegan
BoyIreland
descendant of Caodhán
#627 ↓
Brennick
Sullivan & Brennick
BoyIreland
Descendant of Braonán
#630 →
Kayleigh
Sullivan & Kayleigh
GirlIreland
Variant of KAYLEE. This is also a common Anglicized form of the Gaelic word ceilidh, a traditional social gathering and dance.
#631 ↓
Cailin
Sullivan & Cailin
GirlIreland
Variant of KAYLYN. It also coincides with the Irish word cailín meaning "girl".
#642 →
Madden
Sullivan & Madden
BoyIreland
Little dog
#645 ↑
Bronagh
Sullivan & Bronagh
GirlIreland
sorrowful, sad
#646 →
Faelan
Sullivan & Faelan
BoyIreland
little wolf
#648 →
Clover
Sullivan & Clover
GirlIreland
A flowering plant that symbolizes good luck.
#672 ↑
Corrah
Sullivan & Corrah
GirlIreland
Heart or a beloved
#682 →
Keedan
Sullivan & Keedan
BoyIreland
a descendant of Caedán
#682 →
Cleary
Sullivan & Cleary
UnisexIreland
Descendant of the cleric
#694 →
Aaidan
Sullivan & Aaidan
BoyIreland
little fire
#695 →
Kielin
Sullivan & Kielin
BoyIreland
Slender, Fair
#704 →
Eaden
Sullivan & Eaden
UnisexIreland
little fire
#706 →
Muireann
Sullivan & Muireann
GirlIreland
Sea White
#707 →
Kiley
Sullivan & Kiley
GirlIreland
Variant of KYLIE.
#709 →
Nigíl
Sullivan & Nigíl
BoyIreland
Champion
#709 →
Oscar
Sullivan & Oscar
BoyIreland
deer lover
#216 →
Patrick
Sullivan & Patrick
BoyIreland
From the Latin name Patricius, which meant "nobleman". This name was adopted in the 5th-century by Saint Patrick, whose birth name was Sucat.
#224 →
Rianah
Sullivan & Rianah
GirlIreland
little king; queen
#729 →
Aidrian
Sullivan & Aidrian
BoyIreland
From the sea
#730 →
Keavy
Sullivan & Keavy
GirlIreland
Anglicized form of CAOIMHE.
#730 →
Teige
Sullivan & Teige
BoyIreland
Folk name meaning 'poet', a diminutive of the name Tadhg.
#736 →
Kahlen
Sullivan & Kahlen
UnisexIreland
Pure, slender
#745 →
Naileen
Sullivan & Naileen
GirlIreland
A combination of the name Niamh and the root -leen, suggesting brightness and radiance.
#751 →
Loagan
Sullivan & Loagan
BoyIreland
descendant of the warrior
#764 →
Rheann
Sullivan & Rheann
GirlIreland
Great queen or goddess
#768 →
Flynn
Sullivan & Flynn
BoyIreland
descendant of the red-haired one
#782 ↓
Kelty
Sullivan & Kelty
GirlIreland
from the narrow wood; dweller near the woods
#793 →
Bhrianna
Sullivan & Bhrianna
GirlIreland
exalted; noble
#796 →
Phinn
Sullivan & Phinn
BoyIreland
white, fair
#796 →
Caragan
Sullivan & Caragan
GirlIreland
little heart
#801 →
Aeden
Sullivan & Aeden
BoyIreland
little fire
#805 →
Brian
Sullivan & Brian
BoyIreland
noble, strong
#317 ↓
Ashlyn
Sullivan & Ashlyn
GirlIreland
Dream; vision
#831 ↓
AidanJohn
Sullivan & AidanJohn
BoyIreland
little fire; God is gracious
#832 →
AidenMatthew
Sullivan & AidenMatthew
BoyIreland
little fire
#838 →
Aidanjames
Sullivan & Aidanjames
BoyIreland
Little fire and supplanter
#838 →
Callan
Sullivan & Callan
UnisexIreland
Rocky place
#339 ↑
Bradan
Sullivan & Bradan
BoyIreland
descendant of Bradan
#840 →
Noelan
Sullivan & Noelan
BoyIreland
Noble one
#845 →
Bridan
Sullivan & Bridan
BoyIreland
One who is brave
#852 →
Eanna
Sullivan & Eanna
GirlIreland
the divine, the holy
#856 →
Eeán
Sullivan & Eeán
BoyIreland
gift of God
#857 →
Keating
Sullivan & Keating
UnisexIreland
descendant of Caointeach; little fire
#861 →
Eammon
Sullivan & Eammon
BoyIreland
Wealthy protector
#867 →
Lhiam
Sullivan & Lhiam
BoyIreland
A form of William
#880 →
Kieren
Sullivan & Kieren
UnisexIreland
Little dark one
#882 →
Eava
Sullivan & Eava
GirlIreland
beautiful, radiant
#884 →
Keatin
Sullivan & Keatin
BoyIreland
Derived from 'Catherine', meaning 'pure'.
#892 →
Aiddan
Sullivan & Aiddan
BoyIreland
little fire; young warrior
#902 →
Kellan
Sullivan & Kellan
BoyIreland
slender, narrow
#905 ↓
Keenin
Sullivan & Keenin
BoyIreland
ancient or old
#905 →
Macalla
Sullivan & Macalla
GirlIreland
a place of abundance
#916 →
Ayleen
Sullivan & Ayleen
GirlIreland
bright, shining light; pure, innocent
#917 →
Kiera
Sullivan & Kiera
GirlIreland
little dark one
#919 →
Aelan
Sullivan & Aelan
GirlIreland
noble or serene
#921 →
Dellaney
Sullivan & Dellaney
GirlIreland
from the river valley
#933 →
Cullyn
Sullivan & Cullyn
BoyIreland
cub or pup
#944 →
Iean
Sullivan & Iean
BoyIreland
God is gracious
#944 →
Broedy
Sullivan & Broedy
BoyIreland
Ditch or muddy place
#952 →
Karrick
Sullivan & Karrick
BoyIreland
Little and dark
#952 →
Keetan
Sullivan & Keetan
BoyIreland
little cat
#955 →
Eillie
Sullivan & Eillie
GirlIreland
Bringer of light
#956 →
Kaitin
Sullivan & Kaitin
GirlIreland
Irish
#957 →
Liiam
Sullivan & Liiam
BoyIreland
strong-willed warrior
#957 →
Caitlinn
Sullivan & Caitlinn
GirlIreland
Irish
#961 →
Dannan
Sullivan & Dannan
GirlIreland
Little fire
#962 →
Ciara
Sullivan & Ciara
GirlIreland
Dark, black, or black-haired
#966 →
Caoilinn
Sullivan & Caoilinn
GirlIreland
Variant of CAOILFHIONN.
#967 →
Donovan
Sullivan & Donovan
BoyIreland
dark warrior
#468 ↓
Briana
Sullivan & Briana
GirlIreland
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.
#470 ↑
McCoy
Sullivan & McCoy
BoyIreland
son of the son of the captain
#973 ↑
Morrighan
Sullivan & Morrighan
GirlIreland
great queen
#980 →
Tierni
Sullivan & Tierni
GirlIreland
little land owner, land estate
#992 →
Cadden
Sullivan & Cadden
BoyIreland
warrior
#993 →
Keivin
Sullivan & Keivin
BoyIreland
handsome, beloved
#1000 →
Meada
Sullivan & Meada
GirlIreland
a strong one; a warrior
#504 →
Erris
Sullivan & Erris
BoyIreland
From the ridge.
#506 →
Robann
Sullivan & Robann
GirlIreland
fame; bright; radiant
#507 →
Dohnovan
Sullivan & Dohnovan
BoyIreland
Dark warrior
Kinney
Sullivan & Kinney
BoyIreland
descendant of Caoinneach, meaning 'handsome' or 'attractive'
#510 →
Dublyn
Sullivan & Dublyn
GirlIreland
Black pool
Finlea
Sullivan & Finlea
GirlIreland
fair-haired hero
Michealene
Sullivan & Michealene
GirlIreland
Who is like God?
#516 →
Graidys
Sullivan & Graidys
GirlIreland
Derived from Gráinne, meaning 'love' or 'grace'.
Dooley
Sullivan & Dooley
BoyIreland
Defender
Cathlina
Sullivan & Cathlina
GirlIreland
pure; unsullied
Esker
Sullivan & Esker
BoyIreland
a watercourse, or a river terrace
#525 →
Conell
Sullivan & Conell
BoyIreland
Strong as a wolf
#528 →
Gaelen
Sullivan & Gaelen
BoyIreland
A form of the name 'Gail', meaning 'joyful' or 'cheerful'.; Variant of 'Galen', meaning 'calm' or 'healer'.
#528 →
Ivor
Sullivan & Ivor
BoyIreland
Yew tree
#529 →
Kilian
Sullivan & Kilian
BoyIreland
German form and Irish and French variant of CILLIAN.
Deirra
Sullivan & Deirra
GirlIreland
Sorrowful
Donahue
Sullivan & Donahue
BoyIreland
Descendant of Donnchadh, meaning 'brown warrior'.
#534 →
Caullin
Sullivan & Caullin
BoyIreland
A variant of the name Colin, which is derived from the Gaelic name ‘Cailean’ meaning ‘young pup’ or ‘whelp’.
Teighan
Sullivan & Teighan
GirlIreland
Derived from the Irish surname 'Teigh', meaning 'house or dwelling'.
Toltú
Sullivan & Toltú
GirlIreland
One who brings peace.
Nevan
Sullivan & Nevan
BoyIreland
Anglicized form of NAOMHÁN.
Correena
Sullivan & Correena
GirlIreland
maiden
#539 →
Kathleen
Sullivan & Kathleen
GirlIreland
Anglicized form of CAITLÍN.
#540 →
Deidri
Sullivan & Deidri
GirlIreland
Sorrowful, wailing
#542 →
Mainhia
Sullivan & Mainhia
GirlIreland
tir na nognah, la tierra de la juventud (meaning: land of eternal youth)
#543 →
Breannon
Sullivan & Breannon
GirlIreland
descendant of Braonán
#544 →
Cathlin
Sullivan & Cathlin
GirlIreland
pure
#547 →
Noleen
Sullivan & Noleen
GirlIreland
Famous, noble
#547 →
Donard
Sullivan & Donard
BoyIreland
Donard is derived from the Irish name 'Donard', which means 'world ruler' or 'chief'.
#548 →
Dinean
Sullivan & Dinean
GirlIreland
The name is derived from the word 'dín', meaning 'fortress'.
#549 →
Quinnell
Sullivan & Quinnell
BoyIreland
descendant of Caoinheal
Quinnlan
Sullivan & Quinnlan
UnisexIreland
descendant of Caoinlean
Nigell
Sullivan & Nigell
BoyIreland
A variant of the name Nigel, derived from the Latin 'Nigellus', meaning 'little black one'.
#554 →
Cara
Sullivan & Cara
GirlIreland
friend
#559 →
Draiven
Sullivan & Draiven
BoyIreland
brave, strong; dear one
Ciarrah
Sullivan & Ciarrah
GirlIreland
Little dark one
Caelon
Sullivan & Caelon
BoyIreland
Slender; slim
#575 →
Aiedan
Sullivan & Aiedan
BoyIreland
little fire
Meaghann
Sullivan & Meaghann
GirlIreland
pearl
#579 →
Neana
Sullivan & Neana
GirlIreland
Word derived from the Irish term for 'little girl'.
#582 →
McCai
Sullivan & McCai
BoyIreland
A beloved name with deep roots
Ethna
Sullivan & Ethna
GirlIreland
little fire
#587 →
Dempsy
Sullivan & Dempsy
BoyIreland
A beloved name with deep roots
#588 →
Wileen
Sullivan & Wileen
GirlIreland
delicate
#591 →
Carven
Sullivan & Carven
BoyIreland
A male who is a representative
#594 →
Kevina
Sullivan & Kevina
GirlIreland
Gentle, beautiful; Crowned with beauty
#594 →
Channon
Sullivan & Channon
UnisexIreland
little wolf
#595 →
Keaghan
Sullivan & Keaghan
UnisexIreland
Descendant of Caodhán.
Caetlin
Sullivan & Caetlin
GirlIreland
Variant of CAITLIN.
Kathlean
Sullivan & Kathlean
GirlIreland
pure
#608 →
Killien
Sullivan & Killien
BoyIreland
Little church.
Brekin
Sullivan & Brekin
BoyIreland
freckled
Creedan
Sullivan & Creedan
BoyIreland
A descendant of Recta.
Faylin
Sullivan & Faylin
GirlIreland
little fairy
Kiean
Sullivan & Kiean
BoyIreland
Ancient; enduring
Grainne
Sullivan & Grainne
GirlIreland
Goddess of Love, Love, or Grain (from 'gránn', meaning 'grain')
#615 →
O'Connor
Sullivan & O'Connor
BoyIreland
descendant of Conchobhair, meaning 'lover of hounds'
Terrence
Sullivan & Terrence
BoyIreland
the tender one
#622 →
Conor
Sullivan & Conor
BoyIreland
lover of hound
#623 ↓
Cona
Sullivan & Cona
GirlIreland
Wisdom
#624 →
Kyeron
Sullivan & Kyeron
BoyIreland
dark; black
Beanna
Sullivan & Beanna
GirlIreland
blessed, holy
#626 →
Braden
Sullivan & Braden
BoyIreland
broad valley
Dermont
Sullivan & Dermont
BoyIreland
without a master
#629 →
Abaigeal
Sullivan & Abaigeal
GirlIreland
A variant of Abigail, meaning 'father's joy'.
Tierna
Sullivan & Tierna
GirlIreland
little land
Garreth
Sullivan & Garreth
BoyIreland
spear; gentle
#638 →
Kheelan
Sullivan & Kheelan
BoyIreland
slender, narrow
LiamMichael
Sullivan & LiamMichael
BoyIreland
Liam means 'strong-willed warrior' and Michael means 'who is like God'.