Kelly

unisexIrish

Kelly is an unisex name of Irish origin, meaning “Possibly 'bright-headed' or 'strife'”.

MeaningPossibly 'bright-headed' or 'strife'
GenderUnisex
OriginIrish
PronunciationKEL-ee
TraditionModern & Classic
Used inUnited States, United Kingdom, Ireland, Australia

Meaning and origin of Kelly

Kelly comes from the Irish surname Ó Ceallaigh, 'descendant of Ceallach'. The meaning of Ceallach is debated: some explain it as 'bright-headed', others connect it with a word for strife or war. The popular gloss 'church' comes from cill, which is probably a confusion. Kelly was originally male in Ireland but became mainly a girls' name in the United States, Britain and Australia from the 1960s.

Is Kelly a religious name?

Kelly is a secular Irish surname-name with no clear religious meaning.

How popular is Kelly?

Popular for girls in the 1970s and 1980s; less used today.

Gifts with the name Kelly

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Spellings and variants of Kelly

KelleyKellieCeallach

Names similar to Kelly

KerryShannonErinCasey

More unisex names

Frequently asked questions

What does the name Kelly mean?

Kelly means 'Possibly 'bright-headed' or 'strife''. It is of Irish origin.

Does Kelly have a religious meaning?

Kelly is a secular Irish surname-name with no clear religious meaning.

How do you pronounce Kelly?

Kelly is pronounced KEL-ee.

Is Kelly a boy or girl name?

Kelly is used for both boys and girls.

Updated October 2026. Spotted a mistake? Tell us.