Sibling names for Arthur
Picking a sibling name for Arthur? Each name below is scored on how closely it matches Arthur's style and how well-known it is, with points off for rhyming or starting with the same letter.
Brother names for Arthur
-
Wesley 87
WES-lee
Nature and gentle style
Opens on "W" against Arthur's "A"; brings English roots alongside Arthur's Celtic ones.
-
Robert 84
RAH-bert
Royal and vintage style
Vintage and royal, matching Arthur; matches Arthur syllable for syllable.
-
Leonardo 81
lee-oh-NAR-doh
Classic and royal style
Vowel-heavy, so it flows rather than clips; shortens to Leo and Lenny.
-
Martin 77
MAR-tin
Classic and timeless style
In steady everyday use, but not on every class list; Arthur ends on an "r", Martin on an "n" — a clean contrast.
-
Lucian 75
LOO-shən
Vintage and classic style
A crisp consonant start; vintage and classic, matching Arthur.
-
Quentin 74
KWEN-tin
Classic and vintage style
Consonant-forward, so it lands with a bit of edge; gently on its way down the charts — past its peak.
-
Thomas 71
TOM-əs
Classic and royal style
The same 2 syllables as Arthur, so they balance said together; a different first letter from Arthur — easy to tell apart on school and doctor's forms.
-
Isaac 70
EYE-zək
Biblical and vintage style
More vowels than consonants — an easy, open sound; has Ike and Zac as short forms.
-
Silas 68
SYE-ləs
Nature and vintage style
Latin where Arthur is Celtic — a mix; an even two-syllable name, easy to say.
-
Ryan 67
RYE-ən
Classic and short style
A Top 100 name, familiar without being everywhere; shortens to Ry.
-
Edward 65
ED-werd
Royal and classic style
The same vintage and royal feel as Arthur; starts on a vowel, softening Arthur's firmer ending.
-
Simon 64
SYE-mən
Classic and biblical style
An older name coming back into use; fewer letters on the page than Arthur.
Sister names for Arthur
-
Lillian 88
LIL-yən
Vintage and gentle style
Runs to the same length as Arthur out loud; about as well-known as Arthur right now.
-
Clara 87
KLAIR-uh
Vintage and gentle style
The same vintage and classic feel as Arthur; the soft "-a" ending common in girls' names right now.
-
Vivian 82
VIV-ee-ən
Vintage and classic style
Brings Latin roots alongside Arthur's Celtic ones; has Vivi as a short form.
-
Lydia 81
LID-ee-uh
Classic and biblical style
A different first letter from Arthur — easy to tell apart on school and doctor's forms; opens on a firm consonant.
-
Maria 76
muh-REE-uh
Classic and vintage style
Opens on "M" against Arthur's "A"; no doubt it is the sister name.
-
Caroline 75
KAIR-oh-lyne
Classic and royal style
Adds one beat to Arthur's length; ends on an open "e", a soft finish.
-
Audrey 72
AW-dree
Classic and royal style
Sits at Arthur's level of popularity; vowel-heavy, so it flows rather than clips.
-
Nora 70
NOR-uh
Short and vintage style
Irish where Arthur is Celtic — a mix; vintage and classic, matching Arthur.
-
Stella 68
STEL-uh
Vintage and celestial style
About the same length on the page as Arthur; vintage, like Arthur.
-
Sophie 67
SOH-fee
Classic and french style
Shortens to Fia; neither name stands out next to the other.
-
Iris 65
EYE-ris
Nature and vintage style
Starts on a vowel, softening Arthur's firmer ending; starts with "I", not Arthur's "A", so the two never blur.
-
Daisy 64
DAY-zee
Nature and vintage style
A different ending sound from Arthur; Old English where Arthur is Celtic — a mix.
Reading the scores
The score ranks each pairing with Arthur using our editorial rules for shared style, popularity bands, rhyme, endings and initials. It is a comparison within this list, not a percentage or a prediction of what your family will like. How the score works. Popularity figures use US SSA records for 2025. Name-history notes are shown only where a reference is recorded; origins and pronunciations can vary.
What makes a sibling set work
A sibling set works when the names feel related but not identical: a shared era or style, but different opening sounds and different endings, and no rhyme. Wesley and Lillian are the top picks for Arthur on that basis.
More for Arthur: middle names for Arthur · twin names for Arthur
Common questions
What names go well with Arthur for a sibling?
For a brother: Wesley, Robert, Leonardo, Martin.
For a sister: Lillian, Clara, Vivian, Lydia. Each one feels like it comes from the same family as Arthur, but none of them rhymes with it.
Does a brother or sister name need to match Arthur?
It should feel like it belongs to the same family as Arthur, not like a matching set. That means a shared era or style — Arthur reads as vintage and royal, so lean that way — but a different starting sound and ending. Every name on this page shares at least one style label with Arthur. Names that rhyme with Arthur or also start with "A" get fewer points here.
Does Arthur need a sibling name of the same origin?
No, though it can help. Another Celtic name (like Arthur) gets a small scoring bonus because shared roots read as deliberate, but a strong style match with Arthur matters more either way.
How are the sibling scores for Arthur worked out?
We compare every name with Arthur on style, how well-known it is, and sound. Style counts most; rhyming with Arthur, starting with "A" or ending the same way all lower the score. See the how-we-score page for the details.