Conservative Elections to Wiltshire County Council were held on Thursday, 12 April 1973.

The whole council of seventy-nine members was up for election, and the Conservatives came within a whisker of taking formal control.

The Chairman of the Council since 1969, Sir Henry Langton, did not stand for re-election, and at the annual meeting later in April was succeeded by Frank Willan, who continued for the whole four years of the council's term of office.

The Conservatives, with thirty-nine seats, took effective control of the county council.

Most of the uncontested seats, eighteen, went to Conservatives, five to Independents, and one to a Liberal, Jack Ainslie.