1981 Castlereagh Borough Council election

Main article: Northern Ireland local elections, 1981
1981 Castlereagh Borough Council election
← 1977 20 May 1981 (1981-05-20) 1985 →
All 19 seats to Castlereagh Borough Council
10 seats needed for a majority
  First party Second party Third party
 
Party DUP UUP Alliance
Seats won 9 5 4
Seat change Increase 5 Decrease 1 Decrease 3
  Fourth party
 
Party Ind. Unionist
Seats won 1
Seat change Decrease 1

Elections to Castlereagh Borough Council were held on 20 May 1981 on the same day as the other Northern Irish local government elections. The election used three district electoral areas to elect a total of 19 councillors.