A by-election was held for the New South Wales Legislative Assembly electorate of Armidale on 12 December 1903 because of the resignation of Edmund Lonsdale to successfully contest the federal seat of New England.[1]
| Date | Event | |
|---|---|---|
| 31 October 1903 | Edmund Lonsdale resigned. | |
| 19 November 1903 | Writ of election issued by the Speaker of the Legislative Assembly.[2] | |
| 1 December 1903 | Nominations | |
| 12 December 1903 | Polling day | |
| 16 December 1903 | Federal election | |
| 23 December 1903 | Return of writ |