Best Sibling Names for Fionna
Names chosen to complement Fionna — matching origin (Ireland), era, and style.
200 options100 girl115 boy
These sibling names share Fionna's Ireland roots or similar popularity era, and start with a different letter to avoid alliteration.
Nora
Fionna & Nora
GirlIreland
honor
#24 →
Riley
Fionna & 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
Fionna & Nolan
BoyIreland
Noble, famous
#57 →
Maeve
Fionna & Maeve
GirlIreland
Intoxicating.
#73 ↑
Quinn
Fionna & Quinn
GirlIreland
From an Irish surname, an Anglicized form of Ó Cuinn meaning "descendant of CONN".
#86 →
Connor
Fionna & Connor
BoyIreland
lover of hounds
#126 ↓
Declan
Fionna & Declan
BoyIreland
Anglicized form of Irish Deaglán, which is of unknown meaning. Saint Declan was a 5th-century missionary to Ireland.
#132 ↓
Sloane
Fionna & Sloane
GirlIreland
From an Irish surname which was derived from an Anglicized form of the given name SLUAGHADHÁN.
#151 ↑
Brianna
Fionna & Brianna
GirlIreland
Variant of BRIANA.
#152 →
Reagan
Fionna & Reagan
GirlIreland
Descendant of Riagán
#168 ↓
Brody
Fionna & Brody
BoyIreland
ditch, muddy place
#204 ↓
Delaney
Fionna & Delaney
GirlIreland
From a surname: either the English surname DELANEY (1) or the Irish surname DELANEY (2).
#233 ↑
Rory
Fionna & Rory
UnisexIreland
red king
#242 ↑
Ronan
Fionna & Ronan
BoyIreland
little seal
#290 ↓
Aidan
Fionna & Aidan
BoyIreland
Little fire
#300 ↓
Teagan
Fionna & Teagan
UnisexIreland
Attractive, beautiful
#309 ↓
McKenna
Fionna & McKenna
GirlIreland
descendant of the headstrong one
#326 ↓
Sullivan
Fionna & Sullivan
BoyIreland
From an Irish surname which was derived from Ó Súilleabháin meaning "descendant of Súilleabhán". The name Súilleabhán means "little dark eye" in Irish.
#358 ↑
Desmond
Fionna & Desmond
BoyIreland
From the grassland village
#399 ↓
Callahan
Fionna & Callahan
UnisexIreland
little bright-headed
#460 ↑
Briana
Fionna & 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 ↑
Kieran
Fionna & Kieran
BoyIreland
Little dark one
#477 →
Cassidy
Fionna & Cassidy
GirlIreland
From an Irish surname which was derived from Ó Caiside meaning "descendant of CAISIDE".
#496 ↓
Daigan
Fionna & Daigan
BoyIreland
sorrow or difficulty
#502 →
Killean
Fionna & Killean
BoyIreland
Slender or narrow
#505 →
Murphy
Fionna & Murphy
UnisexIreland
Sea warrior
#519 ↑
Cianan
Fionna & Cianan
BoyIreland
Ancient; a descendant of Cian.
#522 →
Coner
Fionna & Coner
BoyIreland
a variation of the name Connor
#531 →
Drennan
Fionna & Drennan
BoyIreland
Descendant of Dreánán
#533 →
Gráinne
Fionna & Gráinne
GirlIreland
grain, love
#533 →
Correena
Fionna & Correena
GirlIreland
maiden
#539 →
Blaney
Fionna & Blaney
UnisexIreland
daughter of the river
#541 →
Cian
Fionna & 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
Fionna & Aidann
BoyIreland
little fire
#543 →
Brannick
Fionna & Brannick
BoyIreland
Descendant of Bran
#547 →
Denin
Fionna & Denin
BoyIreland
Defender; Descendant of Donn
#547 →
Kieley
Fionna & Kieley
GirlIreland
slender, beautiful
#547 →
O'Conner
Fionna & O'Conner
BoyIreland
A beloved name with deep roots
#552 →
Nigell
Fionna & Nigell
BoyIreland
A variant of the name Nigel, derived from the Latin 'Nigellus', meaning 'little black one'.
#554 →
Covan
Fionna & Covan
BoyIreland
young warrior
#566 →
Rielley
Fionna & Rielley
GirlIreland
descendant of the red-haired one
#567 →
Caelon
Fionna & Caelon
BoyIreland
Slender; slim
#575 →
Deiren
Fionna & Deiren
BoyIreland
Sorrowful; from the sea
#576 →
Ryan
Fionna & 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
Fionna & Kerlin
GirlIreland
Little dark one.
#586 →
Tieg
Fionna & Tieg
BoyIreland
a poetic form of the word 'tadhg', meaning 'poet' or 'philosopher'
#588 →
Dregan
Fionna & Dregan
BoyIreland
Little druid
#592 →
Cillian
Fionna & Cillian
BoyIreland
warrior
#594 ↑
Caelen
Fionna & Caelen
BoyIreland
Irish
#594 →
Kevina
Fionna & Kevina
GirlIreland
Gentle, beautiful; Crowned with beauty
#594 →
Ailse
Fionna & Ailse
GirlIreland
Noble
#597 →
Gael
Fionna & Gael
BoyIreland
a Gael, a person of Gaelic origin; a reference to 'Gale', meaning cheerful or merry
#99 ↑
Keilan
Fionna & Keilan
BoyIreland
Narrow or skinny; Slender or thin
#603 →
Aylish
Fionna & Aylish
GirlIreland
Derived from 'Ailis,' meaning noble or kind
#611 →
Coilin
Fionna & Coilin
BoyIreland
from 'Caolán', meaning 'slender' or 'narrow'
#612 →
Padrick
Fionna & Padrick
BoyIreland
Noble, patrician
#614 →
Conor
Fionna & Conor
BoyIreland
lover of hound
#623 ↓
Donovann
Fionna & Donovann
BoyIreland
Dark warrior
#624 →
Keegan
Fionna & Keegan
BoyIreland
descendant of Caodhán
#627 ↓
Brennick
Fionna & Brennick
BoyIreland
Descendant of Braonán
#630 →
Kayleigh
Fionna & Kayleigh
GirlIreland
Variant of KAYLEE. This is also a common Anglicized form of the Gaelic word ceilidh, a traditional social gathering and dance.
#631 ↓
Shealan
Fionna & Shealan
GirlIreland
from the fairy palace; blessed by good fortune
#634 →
Cailin
Fionna & Cailin
GirlIreland
Variant of KAYLYN. It also coincides with the Irish word cailín meaning "girl".
#642 →
Madden
Fionna & Madden
BoyIreland
Little dog
#645 ↑
Bronagh
Fionna & Bronagh
GirlIreland
sorrowful, sad
#646 →
Patrickjames
Fionna & Patrickjames
BoyIreland
from 'Patricius', meaning nobleman or patrician.; James is derived from the Hebrew name Yaakov, meaning supplanter.
#663 →
Caitlyne
Fionna & Caitlyne
GirlIreland
pure
#665 →
Sheriden
Fionna & Sheriden
GirlIreland
from the Gaelic 'Searraidhe,' meaning 'descendant of Searrat.'
#671 →
Clover
Fionna & Clover
GirlIreland
A flowering plant that symbolizes good luck.
#672 ↑
Corrah
Fionna & Corrah
GirlIreland
Heart or a beloved
#682 →
Keedan
Fionna & Keedan
BoyIreland
a descendant of Caedán
#682 →
Sloan
Fionna & Sloan
UnisexIreland
soughing or tranquil river
#689 ↓
Cleary
Fionna & Cleary
UnisexIreland
Descendant of the cleric
#694 →
Aaidan
Fionna & Aaidan
BoyIreland
little fire
#695 →
Kielin
Fionna & Kielin
BoyIreland
Slender, Fair
#704 →
Eaden
Fionna & Eaden
UnisexIreland
little fire
#706 →
Muireann
Fionna & Muireann
GirlIreland
Sea White
#707 →
Kiley
Fionna & Kiley
GirlIreland
Variant of KYLIE.
#709 →
Nigíl
Fionna & Nigíl
BoyIreland
Champion
#709 →
Oscar
Fionna & Oscar
BoyIreland
deer lover
#216 →
Patrick
Fionna & 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
Fionna & Rianah
GirlIreland
little king; queen
#729 →
Aidrian
Fionna & Aidrian
BoyIreland
From the sea
#730 →
Keavy
Fionna & Keavy
GirlIreland
Anglicized form of CAOIMHE.
#730 →
Shaylin
Fionna & Shaylin
GirlIreland
From the fairy palace.; A variant of the name Shailene.
#731 →
Teige
Fionna & Teige
BoyIreland
Folk name meaning 'poet', a diminutive of the name Tadhg.
#736 →
Tierney
Fionna & Tierney
GirlIreland
lord / landowner
#740 →
Kahlen
Fionna & Kahlen
UnisexIreland
Pure, slender
#745 →
Naileen
Fionna & Naileen
GirlIreland
A combination of the name Niamh and the root -leen, suggesting brightness and radiance.
#751 →
Loagan
Fionna & Loagan
BoyIreland
descendant of the warrior
#764 →
Rheann
Fionna & Rheann
GirlIreland
Great queen or goddess
#768 →
McCord
Fionna & McCord
BoyIreland
Son of the cord or rope maker; also, a surname that has become popular as a first name.
#790 →
Padriac
Fionna & Padriac
BoyIreland
Noble, patrician
#791 →
Kelty
Fionna & Kelty
GirlIreland
from the narrow wood; dweller near the woods
#793 →
Tyghe
Fionna & Tyghe
BoyIreland
Derived from 'Tadhg', meaning 'poet' or 'philosopher'.
#795 →
Bhrianna
Fionna & Bhrianna
GirlIreland
exalted; noble
#796 →
Phinn
Fionna & Phinn
BoyIreland
white, fair
#796 →
Caragan
Fionna & Caragan
GirlIreland
little heart
#801 →
Aeden
Fionna & Aeden
BoyIreland
little fire
#805 →
Brian
Fionna & Brian
BoyIreland
noble, strong
#317 ↓
Ashlyn
Fionna & Ashlyn
GirlIreland
Dream; vision
#831 ↓
AidanJohn
Fionna & AidanJohn
BoyIreland
little fire; God is gracious
#832 →
AidenMatthew
Fionna & AidenMatthew
BoyIreland
little fire
#838 →
Aidanjames
Fionna & Aidanjames
BoyIreland
Little fire and supplanter
#838 →
Callan
Fionna & Callan
UnisexIreland
Rocky place
#339 ↑
Bradan
Fionna & Bradan
BoyIreland
descendant of Bradan
#840 →
Cassady
Fionna & Cassady
GirlIreland
Descendant of the warriors; the brave one.
#844 →
Noelan
Fionna & Noelan
BoyIreland
Noble one
#845 →
Bridan
Fionna & Bridan
BoyIreland
One who is brave
#852 →
Eanna
Fionna & Eanna
GirlIreland
the divine, the holy
#856 →
Eeán
Fionna & Eeán
BoyIreland
gift of God
#857 →
Keating
Fionna & Keating
UnisexIreland
descendant of Caointeach; little fire
#861 →
Cogan
Fionna & Cogan
BoyIreland
descendant of the marsh
#864 →
Kearney
Fionna & Kearney
UnisexIreland
Descendant of Ciarán
#865 →
Eammon
Fionna & Eammon
BoyIreland
Wealthy protector
#867 →
Seonna
Fionna & Seonna
GirlIreland
God is gracious
#869 →
Lhiam
Fionna & Lhiam
BoyIreland
A form of William
#880 →
Kieren
Fionna & Kieren
UnisexIreland
Little dark one
#882 →
Eava
Fionna & Eava
GirlIreland
beautiful, radiant
#884 →
Keatin
Fionna & Keatin
BoyIreland
Derived from 'Catherine', meaning 'pure'.
#892 →
Aiddan
Fionna & Aiddan
BoyIreland
little fire; young warrior
#902 →
Kellan
Fionna & Kellan
BoyIreland
slender, narrow
#905 ↓
Keenin
Fionna & Keenin
BoyIreland
ancient or old
#905 →
Macalla
Fionna & Macalla
GirlIreland
a place of abundance
#916 →
Ayleen
Fionna & Ayleen
GirlIreland
bright, shining light; pure, innocent
#917 →
Kiera
Fionna & Kiera
GirlIreland
little dark one
#919 →
Aelan
Fionna & Aelan
GirlIreland
noble or serene
#921 →
Sean
Fionna & Sean
BoyIreland
Anglicized form of SEÁN.
#427 ↓
Dellaney
Fionna & Dellaney
GirlIreland
from the river valley
#933 →
Connar
Fionna & Connar
BoyIreland
intrapreneur
#937 →
Cullyn
Fionna & Cullyn
BoyIreland
cub or pup
#944 →
Iean
Fionna & Iean
BoyIreland
God is gracious
#944 →
Broedy
Fionna & Broedy
BoyIreland
Ditch or muddy place
#952 →
Karrick
Fionna & Karrick
BoyIreland
Little and dark
#952 →
Keetan
Fionna & Keetan
BoyIreland
little cat
#955 →
Eillie
Fionna & Eillie
GirlIreland
Bringer of light
#956 →
Kaitin
Fionna & Kaitin
GirlIreland
Irish
#957 →
Liiam
Fionna & Liiam
BoyIreland
strong-willed warrior
#957 →
Saoirse
Fionna & Saoirse
GirlIreland
Freedom
#959 ↓
Caitlinn
Fionna & Caitlinn
GirlIreland
Irish
#961 →
Dannan
Fionna & Dannan
GirlIreland
Little fire
#962 →
Ciara
Fionna & Ciara
GirlIreland
Dark, black, or black-haired
#966 →
Caoilinn
Fionna & Caoilinn
GirlIreland
Variant of CAOILFHIONN.
#967 →
Donovan
Fionna & Donovan
BoyIreland
dark warrior
#468 ↓
McCoy
Fionna & McCoy
BoyIreland
son of the son of the captain
#973 ↑
Morrighan
Fionna & Morrighan
GirlIreland
great queen
#980 →
Tierni
Fionna & Tierni
GirlIreland
little land owner, land estate
#992 →
Cadden
Fionna & Cadden
BoyIreland
warrior
#993 →
Keivin
Fionna & Keivin
BoyIreland
handsome, beloved
#1000 →
Shavaun
Fionna & Shavaun
GirlIreland
From the -shawn family of names
#500 →
Biranna
Fionna & Biranna
GirlIreland
Variant of 'Birn' or 'Birna' which means 'sea' or 'ocean'.
Meada
Fionna & Meada
GirlIreland
a strong one; a warrior
#504 →
Erris
Fionna & Erris
BoyIreland
From the ridge.
#506 →
Robann
Fionna & Robann
GirlIreland
fame; bright; radiant
#507 →
Dohnovan
Fionna & Dohnovan
BoyIreland
Dark warrior
Kinney
Fionna & Kinney
BoyIreland
descendant of Caoinneach, meaning 'handsome' or 'attractive'
#510 →
Dublyn
Fionna & Dublyn
GirlIreland
Black pool
Michealene
Fionna & Michealene
GirlIreland
Who is like God?
#516 →
Graidys
Fionna & Graidys
GirlIreland
Derived from Gráinne, meaning 'love' or 'grace'.
Dooley
Fionna & Dooley
BoyIreland
Defender
Cathlina
Fionna & Cathlina
GirlIreland
pure; unsullied
Brennan
Fionna & Brennan
BoyIreland
Descendant of Braonán; 'Descendant of the sad one'.
Esker
Fionna & Esker
BoyIreland
a watercourse, or a river terrace
#525 →
Conell
Fionna & Conell
BoyIreland
Strong as a wolf
#528 →
Gaelen
Fionna & Gaelen
BoyIreland
A form of the name 'Gail', meaning 'joyful' or 'cheerful'.; Variant of 'Galen', meaning 'calm' or 'healer'.
#528 →
Ivor
Fionna & Ivor
BoyIreland
Yew tree
#529 →
Kilian
Fionna & Kilian
BoyIreland
German form and Irish and French variant of CILLIAN.
Deirra
Fionna & Deirra
GirlIreland
Sorrowful
Donahue
Fionna & Donahue
BoyIreland
Descendant of Donnchadh, meaning 'brown warrior'.
#534 →
Caullin
Fionna & Caullin
BoyIreland
A variant of the name Colin, which is derived from the Gaelic name ‘Cailean’ meaning ‘young pup’ or ‘whelp’.
Teighan
Fionna & Teighan
GirlIreland
Derived from the Irish surname 'Teigh', meaning 'house or dwelling'.
Toltú
Fionna & Toltú
GirlIreland
One who brings peace.
Nevan
Fionna & Nevan
BoyIreland
Anglicized form of NAOMHÁN.
Catelin
Fionna & Catelin
GirlIreland
pure
Kathleen
Fionna & Kathleen
GirlIreland
Anglicized form of CAITLÍN.
#540 →
Deidri
Fionna & Deidri
GirlIreland
Sorrowful, wailing
#542 →
Mainhia
Fionna & Mainhia
GirlIreland
tir na nognah, la tierra de la juventud (meaning: land of eternal youth)
#543 →
SeanPatrick
Fionna & SeanPatrick
BoyIreland
God is gracious; nobleman
Breannon
Fionna & Breannon
GirlIreland
descendant of Braonán
#544 →
Cathlin
Fionna & Cathlin
GirlIreland
pure
#547 →
Noleen
Fionna & Noleen
GirlIreland
Famous, noble
#547 →
Donard
Fionna & Donard
BoyIreland
Donard is derived from the Irish name 'Donard', which means 'world ruler' or 'chief'.
#548 →
Dinean
Fionna & Dinean
GirlIreland
The name is derived from the word 'dín', meaning 'fortress'.
#549 →
Quinnell
Fionna & Quinnell
BoyIreland
descendant of Caoinheal
Quinnlan
Fionna & Quinnlan
UnisexIreland
descendant of Caoinlean
Cara
Fionna & Cara
GirlIreland
friend
#559 →
Siohban
Fionna & Siohban
GirlIreland
God is gracious.
#560 →
Shevaun
Fionna & Shevaun
GirlIreland
Anglicized form of SIOBHÁN.
#561 →
Draiven
Fionna & Draiven
BoyIreland
brave, strong; dear one
Ciarrah
Fionna & Ciarrah
GirlIreland
Little dark one
Shivon
Fionna & Shivon
GirlIreland
God is gracious
#569 →
Aiedan
Fionna & Aiedan
BoyIreland
little fire
Meaghann
Fionna & Meaghann
GirlIreland
pearl
#579 →
Neana
Fionna & Neana
GirlIreland
Word derived from the Irish term for 'little girl'.
#582 →
McCai
Fionna & McCai
BoyIreland
A beloved name with deep roots
Ethna
Fionna & Ethna
GirlIreland
little fire
#587 →
Dempsy
Fionna & Dempsy
BoyIreland
A beloved name with deep roots
#588 →
Wileen
Fionna & Wileen
GirlIreland
delicate
#591 →
Carven
Fionna & Carven
BoyIreland
A male who is a representative
#594 →
Channon
Fionna & Channon
UnisexIreland
little wolf
#595 →