An election to all 24 seats on the council of the electoral county of Dublin–Fingal within Dublin County took place on 20 June 1985 as part of the 1985 Irish local elections.

Councillors were elected from 6 local electoral areas for a five-year term of office on the electoral system of proportional representation by means of the single transferable vote (PR-STV).

[1] This term was extended for a further year, to 1991.

[2] Dublin–Fingal was one of three electoral counties in Dublin County established by the Local Government (Reorganisation) Act 1985.

[3][4] The councillors elected also sat as members of Dublin County Council, along with those elected for Dublin–Belgard and Dún Laoghaire–Rathdown.