1966 Hamburg state election
On 27 March 1966, elections for members of the sixth legislative period of the Hamburg Parliament after the Second World War were held in the German state of Hamburg. There were 1,375,491 eligible voters.
Results
959,816 voters, meaning a turnout of 69.8%, gave 947,802 valid and 12,014 invalid votes.| Party | Votes | Vote percentage | Seats | Seats percentage |
| Social Democratic Party | 558.754 | 59.0% | 74 | 61,7% |
| Christian Democratic Union | 284.501 | 30.0% | 38 | 31,7% |
| Free Democratic Party | 64.837 | 6.8% | 8 | 6,7% |
| National Democratic Party | 36.654 | 3.9% | 0 | |
| Frei-Soziale Union | 3.056 | 0.3% | 0 |