title: Dionysius Ó Donnchadha
text: # Dionysius Ó Donnchadha
  
  Dionysius Ó Donnchadha was an Irish Roman Catholic bishop who served as the Bishop of Kilmacduagh from 1441 to 1478.
  
  Nothing appears to be known of this bishop's term. A Diarmaid Ó Donnchadha became bishop of the same diocese in 1418.
  
  