Dublin County North was a parliamentary constituency represented in Dáil Éireann, the lower house of the Irish parliament or Oireachtas, from 1969 to 1981.
The method of election was proportional representation by means of the single transferable vote (PR-STV).
Under the Electoral (Amendment) Act 1974, it was reduced to 3 seats from 1977 onwards.
It was abolished by the Electoral (Amendment) Act 1980. and the Baldoyle ward in the county borough of Dublin.
[1] and in the county borough of Dublin, the wards of Finglas East C, Santry A.