1977 Castlereagh Borough Council election

Main article: Northern Ireland local elections, 1977
1977 Castlereagh Borough Council election
← 1973 18 May 1977 (1977-05-18) 1981 →
All 19 seats to Castlereagh Borough Council
10 seats needed for a majority
  First party Second party Third party
 
Party Alliance UUP DUP
Seats won 7 6 4
Seat change Increase 2 Decrease 4 Increase 4
  Fourth party Fifth party Sixth party
 
Party Ind. Unionist United Loyalist Loyalist Coalition
Seats won 2 0 0
Seat change Increase 2 Decrease 2 Decrease 1
  Seventh party
 
Party Independent
Seats won 0
Seat change Decrease 1

Elections to Castlereagh Borough Council were held on 18 May 1977 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.