| Country: | New South Wales |
| Type: | parliamentary |
| Ongoing: | no |
| Election Date: | 15 April 1989 |
| Candidate1: | John Anderson |
| Party1: | National Party of Australia |
| Popular Vote1: | 31,209 |
| Percentage1: | 56.0% |
| Swing1: | 1.2 |
| Candidate2: | John Uebergang |
| Party2: | Independent politician |
| Popular Vote2: | 14,660 |
| Percentage2: | 26.3% |
| Swing2: | 26.3 |
| Candidate3: | Bevan O'Regan |
| Party3: | Independent politician |
| Popular Vote3: | 9,881 |
| Percentage3: | 17.7% |
| Swing3: | 17.7 |
| 1Blank: | TPP |
| 2Blank: | TPP swing |
| 1Data1: | 60.4% |
| 2Data1: | 0.1 |
| 1Data2: | 39.6% |
| 2Data2: | 39.6 |
| MP | |
| Before Election: | Ralph Hunt |
| Before Party: | National Party of Australia |
| After Election: | John Anderson |
| After Party: | National Party of Australia |
A by-election was held for the Australian House of Representatives seat of Gwydir on 15 April 1989. This was triggered by the resignation of National Party MP Ralph Hunt.
The Australian Labor Party did not field a candidate. The by-election was won by the National Party's John Anderson.