1978 Austrian nuclear power referendum
A referendum on the use of nuclear power was held in Austria on 5 November 1978. Voters were asked whether they approve a law allowing the peaceful use of nuclear power, particularly relating to the start-up of the Zwentendorf Nuclear Power Plant. Voters narrowly rejected it, with 50.5% voting against. As a result, although the Power Plant was finished, it was never operated and has since been dismantled.
Voter turnout was 64.1%.
Results by state
| State | Choice | Valid votes | Yes votes | Yes votes | No votes | No votes |
| Burgenland | 187.879 | 124.384 | 74.377 | 59,8 | 50.007 | 40,2 |
| Carinthia | 355.219 | 217.911 | 117.481 | 54,1 | 100.070 | 45,9 |
| Lower Austria | 964.048 | 672.154 | 341.831 | 50,8 | 330.323 | 49,2 |
| Upper Austria | 809.904 | 537.965 | 254.337 | 47,3 | 282.628 | 52,3 |
| Salzburg | 277.141 | 165.523 | 71.576 | 43,2 | 93.947 | 56,8 |
| Styria | 793.746 | 452.423 | 238.851 | 52,8 | 213.572 | 47,2 |
| Tirol | 355.164 | 156.160 | 53.357 | 34,2 | 102.803 | 65,8 |
| Vorarlberg | 169.065 | 126.779 | 19.731 | 15,6 | 107.048 | 84,4 |
| Vienna | 1.171.613 | 730.187 | 404.808 | 55,4 | 325.379 | 44,6 |
| Total | 5.083.779 | 3.183.486 | 1.576.709 | 49,5 | 1.606.777 | 50,5 |
