A by-election for the seat of Cessnock in the New South Wales Legislative Assembly was held on 8 October 1949. The by-election was triggered by the resignation of Jack Baddeley to accept the position of Chairman of the State Coal Mine Authority.[1]
A by-election for the seat of Redfern was held on the same day.
| Date | Event | |
|---|---|---|
| 8 September 1949 | Jack Baddeley resigned. | |
| 14 September 1949 | Writ of election issued by the Speaker of the Legislative Assembly.[2] | |
| 20 September 1949 | Close of nominations | |
| 8 October 1949 | Polling day | |
| 8 November 1949 | Return of writ |