Sibling names for Brian

If you’ve chosen Brian (a boy name of Irish origin), these names pair well as a sibling. Matched by shared heritage, similar U.S. popularity tier, and a different first letter and ending to avoid confusion at roll call.

These suggestions are tuned specifically to Brian, a name of Irish origin currently sitting at #317 in the U.S.. Each pairing is filtered to start with a different letter and end with a different sound, so siblings don't blur into each other when called.

Below: 9 sister names and 12 brother names that match Brian's heritage and popularity tier.

Sister names for Brian

Kennedy

#72

Girl ·Irish

Helmeted chief; ugly head

Riley

#223

Unisex ·Irish

Anglicized from the Irish clan name Ó Raghallaigh; the root Raghallach is usually glossed as "valiant" or "courageous

Kaitlyn

#619

Girl ·Irish

Modern American respelling of Caitlin (Irish form of Katherine, from Greek 'pure')

Erin

#652

Girl ·Irish

From the Irish Éirinn, the dative form of Éire — the poetic name for Ireland itself, from a primordial Gaelic goddess associated with the land

Kelly

#779

Girl ·Irish

Anglicized form of Irish Ó Ceallaigh, 'descendant of Ceallach' — meaning 'bright-headed' or 'warrior'

Katelyn

#851

Girl ·Irish

Modern American respelling of Caitlin, the Irish form of Katherine — ultimately from Greek Aikaterinē, traditionally linked to katharos meaning 'pure'

Kathleen

#1023

Girl ·Irish

Anglicized form of Irish Caitlín, itself from French Cateline (a medieval form of Katherine), ultimately from Greek Aikaterinē — traditionally linked to katharos ('pure')

Casey

#316

Unisex ·Irish

From the Irish surname Ó Cathasaigh meaning 'descendant of Cathasach' — from cathasach ('vigilant in war')

Sheila

#1942

Girl ·Irish

Anglicized form of Irish Síle, the Irish form of Cecilia — from Latin caecus ('blind')

Brother names for Brian

Casey

#316

Unisex ·Irish

From the Irish surname Ó Cathasaigh meaning 'descendant of Cathasach' — from cathasach ('vigilant in war')

Cody

#304

Boy ·Irish

Anglicized form of the Irish surname Ó Cuidighthigh meaning 'descendant of the helper' (from cuidighthech, 'helpful one')

Riley

#223

Unisex ·Irish

Anglicized from the Irish clan name Ó Raghallaigh; the root Raghallach is usually glossed as "valiant" or "courageous

Liam

Boy ·Irish

Strong-willed warrior; a short form of William, from Germanic elements meaning 'will, desire' and 'helmet, protection'

Kevin

#188

Boy ·Irish

Anglicized from Caoimhín, from Old Irish Cóemgen — coém ("kind, gentle") + gen ("birth"), i

Devin

#462

Boy ·Irish

From the Irish surname Ó Damhain meaning 'descendant of Damhán' — Damhán being a personal name from damh ('stag', 'poet')

Connor

#126

Boy ·Irish

Lover of hounds; wise

Aiden

#40

Boy ·Irish

Little fire; fiery one

Shane

#555

Boy ·Irish

Anglicized form of Irish Seán, the Irish form of John (Hebrew Yochanan, 'God is gracious')

Shawn

#633

Boy ·Irish

Anglicized spelling of Irish Seán, itself the Irish form of John (Hebrew Yochanan, 'God is gracious')

Corey

#642

Boy ·Irish

From an Irish surname Ó Corra meaning 'descendant of Corra' — Corra being an Old Irish personal name of uncertain meaning, perhaps 'spear'

Cory

#1179

Boy ·Irish

A spelling variant of Corey, from the Irish surname Ó Corra meaning 'descendant of Corra' — Corra being a personal name of uncertain meaning, perhaps 'spear'

How we pick siblings

For each candidate we require: the same primary origin as Brian, a U.S. rank in 2023, a different first letter, and a different two-letter ending. Candidates are then scored by origin overlap and proximity in rank, so siblings sit in the same popularity tier rather than pairing a Top-10 name with something obscure.