The 1966 Australian federal election was held in Australia on 26 November 1966. All 124 seats in the House of Representatives were up for election. The incumbent Liberal–Country coalition government, led by Prime Minister Harold Holt, won an increased majority over the opposition Labor Party, led by Arthur Calwell, in a landslide. This was the first and only time that a Federal Government won an eighth consecutive term in office.

The House of Representatives is the lower house of the bicameral Parliament of Australia, the upper house being the Senate. Its composition and powers are set down in Chapter I of the Constitution of Australia.