Namesakes for Niall

Irish High Kings: 4 kings
      King Niall I Naoighiallach   379-405  
      King Niall II Frasach   763-770  
      King Niall III Caille   833-846  
      King Niall IV Glúin Dubh   915-919  
Notable Athletes: 1 cricket, 1 soccer
      (cricket) Niall O'Brien   1981-  
      (soccer) Niall McGinn   1987-