The Westralian Ministerial Election of 1875 was the 3rd quinquennial ministerial election, held on Monday, 5 July 1875. This was the first election following the establishment of the Royal Congress. The Democratic Labour Party nominated Harold Symons, while the National Unity Party nominated Paul Arlyn, 1st Earl Arlyn. Symons won the election, becoming the 2nd Prime Minister of Westralia.