Donnelly

Donnelly is a boy's baby name of Irish origin, from the Irish surname Ó Donnghaile, meaning 'descendant of Donnghal' — composed of donn (dark, brown) and gal (valor, fierceness), meaning 'dark valor' or 'brown warrior.'

Donnelly is a well-established Irish surname occasionally used as a given name in the tradition of honoring Irish family heritage — carrying the fierce, spirited energy of its Irish warrior roots in a surname that sounds equally at home in the first-name position.