A by-election was held in the New South Wales state electoral district of Upper Hunter on 8 June 1918. The by-election was triggered by the resignation of Mac Abbott .[1]
| Date | Event | |
|---|---|---|
| 10 May 1918 | Resignation of Mac Abbott. | |
| 14 May 1918 | Writ of election issued by the Speaker of the Legislative Assembly.[2] | |
| 21 May 1918 | Nominations | |
| 8 June 1918 | Polling day | |
| 25 June 1918 | Return of writ |