Elections to Larne Borough Council were held on 30 May 1973 on the same day as the other Northern Irish local government elections.
The election used three district electoral areas to elect a total of 15 councillors.
[1] 1973: 1 x Alliance, 1 x UUP, 1 x Loyalist, 1 x Independent 1973: 3 x Loyalist, 1 x Independent Unionist 1973: 4 x Loyalist, 2 x Alliance, 1 x Independent