Niall Kennedy
Niall Keown
Niall Killoran
Niall King
Niall Leonard
Niall Lepper
Niall Linehan
Niall Lothian
Niall Lucy
Niall M Conway
Niall M. O'Callaghan
Niall mac Aed Ó hUiginn
Niall mac Cailein
Niall mac Cernaig Sotal
Niall mac Conaill
Niall Mac Eachmharcaigh
Niall mac Eochada
Niall mac Fergal Óge Ó hUicinn
Niall Macauley
Niall MacCormick
Niall MacDermot
Niall MacGinnis
Niall Macgregor
Niall Mackenzie
Niall MacKenzie
Niall MacMonagle
Niall MacPhee
Niall Macpherson, 1st Baron Drumalbyn
Niall Madden
Niall Maher
Niall Malone
Niall Mannion
Niall Mansfield
Niall Martin
Niall Matheson
Niall Matter
Niall McCann
Niall McCarthy
Niall McCormack
Niall McCrudden
Niall McCullough
Niall McCusker
Niall McDarby
Niall McDermot
Niall McDonagh
Niall McGarry
Niall McGinn
Niall McGrath
Niall McGuinness
Niall McInerney
Niall McKay
Niall McKeever
Niall McLaren
Niall McNamee
Niall McNeill
Niall McNelis
Niall McShea
Niall Mellon
Niall Molloy
Niall Mooney
Niall Moran
Niall Moroney
Niall Morris
Niall Morrison
Niall Murphy
Niall Ó Brolcháin
Niall Ó Callanáin
Niall O Dochartaigh
Niall Ó Dónaill
Niall Ó Donnghaile
Niall Ó Glacáin
Niall O' Floinn
Niall O'Brien
Niall O'Brolchain
Niall O'Callanain
Niall O'Casey
Niall O'Connor
Niall O'Donovan
Niall O'Dowd
Niall O'Driscoll
Niall O'Gallagher
Niall O'Higgins
Niall O'Neill
Niall O'Reilly
Niall O'Shea
Niall O'Sullivan
Niall O'Toole
Niall of the Nine Hostages
Niall Owens
Niall Patrick