| Country: | New South Wales |
| Type: | parliamentary |
| Ongoing: | no |
| Election Date: | 6 March 1926 |
| Vote Type: | Popular |
| Image1: | John Arthur Perkins.jpg |
| Candidate1: | John Perkins |
| Party1: | Nationalist Party (Australia) |
| Popular Vote1: | 20,573 |
| Percentage1: | 60.0% |
| Swing1: | 4.6pp |
| Candidate2: | Charles Morgan |
| Party2: | Australian Labor Party |
| Popular Vote2: | 13,729 |
| Percentage2: | 40.0% |
| Swing2: | 4.6pp |
| MP | |
| Before Election: | Austin Chapman |
| Before Party: | Nationalist Party (Australia) |
| After Election: | John Perkins |
| After Party: | Nationalist Party (Australia) |
| Election Name: | 1926 Eden-Monaro by-election |
| 1Blank: | TPP |
A by-election was held for the Australian House of Representatives seat of Eden-Monaro on 6 March 1926. This was triggered by the death of Nationalist MP Sir Austin Chapman. Canberra residents were not permitted to vote although the Australian Capital Territory is geographically inside the Division.[1]
The by-election was won by Nationalist candidate John Perkins.