Elections to Alnwick District Council were held on the 30th of May 1973 alongside other local elections for Non-metropolitan district councils across England. The election was mainly fought between Independent politicians with a few wards being contested by Labour candidates. This was the first election for Alnwick District Council after it was created by the Local Government Act 1972. Although the election took place in 1973, the elected council only operated as a shadow authority until 1 April 1974 when they took over the powers of the previous council. The district was formed on 1 April 1974 as a merger of the urban districts of Alnwick and Amble and the rural districts of Alnwick and Rothbury.
The result for each ward was as follows: