State elections were held in South Australia on 5 April 1930. All 46 seats in the South Australian House of Assembly were up for election. The incumbent Liberal Federation government led by Premier of South Australia Richard L. Butler was defeated by the opposition Australian Labor Party led by Leader of the Opposition Lionel Hill.

1930 South Australian state election

← 1927 5 April 1930 (1930-04-05) 1933 →
All 46 seats in the South Australian House of Assembly 24 seats were needed for a majority
First party Second party   Leader Lionel Hill Richard L. Butler Party Labor Liberal Federation Leader since 28 August 1926 17 December 1925 Leader's seat Port Pirie Wooroora Last election 16 seats 23 seats Seats won 30 seats 13 seats Seat change 14 10 Percentage 48.64% 35.66% Swing 0.65 4.36
Premier before election Richard L. Butler Liberal Federation Elected Premier Lionel Hill Labor

Each district elected multiple members. This election saw the change from first past the post (plurality) to instant-runoff (preferential) voting, which also meant that electors cast a single vote rather than multiple votes. With 30 of 46 seats in the House of Assembly, the election remains South Australian Labor's biggest seat win.