The 1973 Irish general election to the 20th Dáil was held on Wednesday, 28 February 1973, following the dissolution of the 19th Dáil on 5 February by President Éamon de Valera on the request of Taoiseach Jack Lynch. The general election took place in 42 Dáil constituencies throughout Ireland for 144 seats in Dáil Éireann, the house of representatives of the Oireachtas.

The Taoiseach is the head of government or prime minister of Ireland. The office is appointed by the President of Ireland upon the nomination of Dáil Éireann and the office-holder must retain the support of a majority in the Dáil to remain in office.