| Country: | Australian Capital Territory |
| Type: | parliamentary |
| Ongoing: | no |
| Election Date: | 30 May 1970 |
| Candidate1: | Kep Enderby |
| Party1: | Australian Labor Party |
| Popular Vote1: | 20,132 |
| Percentage1: | 35.6% |
| Swing1: | 32.1pp |
| Candidate2: | Clarrie Hermes |
| Party2: | Liberal Party of Australia |
| Popular Vote2: | 15,900 |
| Percentage2: | 28.1% |
| Swing2: | 1.2pp |
| Candidate4: | Alan Fitzgerald |
| Party4: | Australia Party |
| Color4: | FECC2E |
| Popular Vote4: | 9,914 |
| Percentage4: | 17.5% |
| Swing4: | 12.9pp |
| Candidate5: | Jim Pead |
| Party5: | Independent politician |
| Popular Vote5: | 8,151 |
| Percentage5: | 14.4% |
| Swing5: | 14.4pp |
| 1Blank: | TPP |
| 2Blank: | TPP swing |
| 1Data1: | 57.8% |
| 2Data1: | 13.4pp |
| 1Data2: | 42.2% |
| 2Data2: | 13.4pp |
| MP | |
| Before Election: | Jim Fraser |
| Before Party: | Australian Labor Party |
| After Election: | Kep Enderby |
| After Party: | Australian Labor Party |
A by-election was held for the Australian House of Representatives seat of Australian Capital Territory on 30 May 1970. This was triggered by the death of Labor MP Jim Fraser.
The by-election was won by Labor candidate Kep Enderby. It was also notable for recording the highest vote ever received in a federal electorate by an Australia Party candidate.
Ted Cawthron from the National Socialist Party of Australia was the first National Socialist in Australia to run for public office.