Elections to Coleraine Borough Council were held on 15 May 1985 on the same day as the other Northern Irish local government elections.

The election used three district electoral areas to elect a total of 21 councillors.

Note: "Votes" are the first preference votes.

1985: 4 x UUP, 2 x SDLP, 1 x DUP 1985: 3 x DUP, 2 x UUP, 1 x Alliance, 1 x Independent 1985: 4 x UUP, 2 x DUP, 1 x Alliance