The 1903 Australian federal election was held in Australia on 16 December 1903. All 75 seats in the House of Representatives, and 19 of the 36 seats in the Senate were up for election. The incumbent Protectionist Party minority government led by Prime Minister Alfred Deakin retained the most House of Representatives seats of the three parties and retained government with the parliamentary support of the Labour Party led by Chris Watson. The Free Trade Party led by George Reid remained in opposition.

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.