| Election Name: | 1930 South Australian state election |
| Country: | South Australia |
| Type: | parliamentary |
| Ongoing: | no |
| Previous Election: | 1927 South Australian state election |
| Previous Year: | 1927 |
| Next Election: | 1933 South Australian state election |
| Next Year: | 1933 |
| Seats For Election: | All 46 seats in the South Australian House of Assembly 24 seats were needed for a majority |
| Leader1: | Lionel Hill |
| Leader Since1: | 28 August 1926 |
| Party1: | Australian Labor Party (South Australian Branch) |
| Leaders Seat1: | Port Pirie |
| Percentage1: | 48.64% |
| Swing1: | 0.65 |
| Last Election1: | 16 seats |
| Seats1: | 30 seats |
| Seat Change1: | 14 |
| Leader2: | Richard L. Butler |
| Leader Since2: | 17 December 1925 |
| Party2: | Liberal Federation |
| Leaders Seat2: | Wooroora |
| Percentage2: | 35.66% |
| Swing2: | 4.36 |
| Last Election2: | 23 seats |
| Seats2: | 13 seats |
| Seat Change2: | 10 |
| Premier | |
| Before Election: | Richard L. Butler |
| Before Party: | Liberal Federation |
| After Election: | Lionel Hill |
| After Party: | Australian Labor Party (South Australian Branch) |
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.
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.
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