Donnelly as a Baby Name. Meaning and Origin of Donnelly

What is the meaning of the name Donnelly ?

The baby name Donnelly is a Male name , 3 syllables long and is pronounced US: /ˈdɑnəli/; UK: /ˈdɒnəli/; respelling: DON-uh-lee.

Donnelly is Irish in Origin.

Donnelly is an Irish surname turned given name, from Gaelic Ó Donnghaile “descendant of Donnghal.” The medieval personal name Donnghal combines donn (“brown, noble”) and gal (“valor, prowess”), yielding a sense of “the valiant (brown-haired) one.” Long established in Ulster, the Ó Donnghaile were a prominent Cenél nEógain family allied to the O’Neill lords of Tyrone; the anglicized Donnelly appears in Irish annals and parish rolls, then spreads to Britain and North America with 18th-19th-century migration. As a first name, Donnelly emerged in the 20th century, fitting the surname-as-given-name trend. Usage remains uncommon and leans masculine, though sometimes unisex.

Variants include O’Donnelly, Donnely, Donnally, and Donally; the Gaelic form is Ó Donnghaile. Related given names are Donnell and Donal/Dónal (distinct etymologies but often associated). Short forms Don and Donnie are natural nicknames. The name conveys heritage-rich Irish character with the meaning “descendant of the brave one.”

⚙ Donnelly is a genuine rarity. In all, it appears just 20 times, across 10 countries.