Nolan surname meaning

Nolan is an Irish surname from Gaelic Ó Nualláin, “descendant of Nuallán.” The personal name is a diminutive of nuall, an element glossed “famous” or “noble.” Nolen, Nowlin, and Nowlan are familiar anglicized variants of the same patronymic that show up across Ireland and the Irish diaspora. The name identifies descent from an ancestor called Nuallán rather than a place or trade, so genealogists still need records to connect lines that share only the English spelling. Parent’s name is high confidence because the Gaelic etymology is consistently attested in standard surname dictionaries.