Niall as a Baby Name. Meaning and Origin of Niall

What is the meaning of the name Niall ?

The baby name Niall is a Male name , 2 syllables long and is pronounced ˈnaɪəl (NYE-əl),niːl (NEEL).

Niall is Irish in Origin.

Niall is an Irish given name from Old Irish Niall, of uncertain etymology; scholars propose meanings such as “champion/warrior” (linked to Old Irish nia ‘hero’) or notions like “cloud,” “passionate,” or “fervent.” In modern Irish it is spelled Niall; pronunciations vary (often like “Nile”), and the genitive Néill is familiar in surnames and place-names.

The name is prominent in early medieval Ireland through Niall Noígiallach (“of the Nine Hostages”), a legendary 5th-century High King and progenitor of the Uí Néill dynasty. It travelled into Scotland with Gaelic culture and later into English via anglicizations. Common variants include Neil, Neal, and Neill; Scots forms mirror these, while Nigel became associated in medieval England through conflation with the Latin Nigellus. Surnames O’Neill/Neill and MacNeil/McNeill reflect descent from bearers of Niall. The name saw steady revival in the 19th-20th centuries and remains well used in Ireland and the UK.