The 1970 Upper Hunter state by-election was held on 14 February 1970 for the New South Wales Legislative Assembly seat of Upper Hunter. It was triggered by the resignation of Frank O'Keefe to successfully contest the federal seat of Paterson at the 1969 election.[1]
| Date | Event | |
|---|---|---|
| 22 September 1969 | Resignation of Frank O'Keefe. | |
| 25 October 1969 | 1969 Australian federal election | |
| 19 January 1970 | Writ of election issued by the Speaker of the Legislative Assembly and close of electoral rolls.[2] | |
| 23 January 1970 | Day of nomination | |
| 14 February 1970 | Polling day | |
| 10 March 1970 | Return of writ |