1973 North Down Borough Council election

Main article: Northern Ireland local elections, 1973
1973 North Down Borough Council election
30 May 1973 (1973-05-30) 1977 →
All 20 seats to North Down Borough Council
11 seats needed for a majority
  First party Second party Third party
 
Party UUP Alliance Loyalist
Seats won 9 7 4

Elections to North Down Borough Council were held on 30 May 1973 on the same day as the other Northern Irish local government elections. The election used four district electoral areas to elect a total of 20 councillors.

The elections were the first following the reorganisation of local government in Northern Ireland, brought about by the Local Government (Boundaries) Act (Northern Ireland) 1971 & Local Government Act (Northern Ireland) 1972, which replaced the previous FPTP ward system with a new system of proportional representation using multi-member district electoral areas.