Cloud, champion, or passionate
Niall is an ancient Irish name with several possible etymological roots, most commonly associated with the Old Irish word 'nél' meaning cloud. It is also frequently interpreted as meaning 'champion' or 'passionate' in the context of early Gaelic kingship. The name is famously linked to the semi-legendary 4th-century High King of Ireland, Niall of the Nine Hostages.
About 96 boys were named Niall in 2025.
US births per 5-year period, 1990–present (SSA data).
Irish singer-songwriter and former member of One Direction
Prominent British historian and author
Irish professional footballer and manager
Semi-legendary 4th-century High King of Ireland