Elections to Newtownabbey Borough Council were held on 30 May 1973 on the same day as the other Northern Irish local government elections.
The election used four district electoral areas to elect a total of 21 councillors.
[1] 1973: 4 x UUP, 1 x DUP 1973: 2 x UUP, 1 x Alliance, 1 x NILP, 1 x Loyalist, 1 x United Loyalist 1973: 3 x UUP, 1 x Alliance, 1 x DUP 1973: 3 x UUP, 1 x Alliance, 1 x DUP