Elections to Ballymoney Borough Council were held on 17 May 1989 on the same day as the other Northern Irish local government elections.

The election used three district electoral areas to elect a total of 16 councillors.

Note: "Votes" are the first preference votes.

1985: 2 x DUP, 2 x UUP, 1 x Independent 1989: 2 x DUP, 2 x UUP, 1 x Independent 1985-1989 Change: No change 1985: 2 x DUP, 2 x UUP, 1 x SDLP, 1 x Sinn Féin 1989: 2 x DUP, 2 x UUP, 2 x SDLP 1985-1989 Change: SDLP gain from Sinn Féin 1985: 2 x UUP, 2 x DUP, 1 x SDLP 1989: 2 x UUP, 2 x DUP, 1 x SDLP 1985-1989 Change: No change