Name Donnellan
Type Surname (from given name)
Usage Irish
Other Forms FormsO'Domhnallain, Donelan, Donnelan, Donnellon, Donellan, Donlon, Donlan
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Meaning & History
From the Gaelic Domhnallain, a diminutive of Donnell/Domhnall meaning "world mighty" (Irish form of the Scottish Donald).