A by-election for the seat of Canterbury in the New South Wales Legislative Assembly was held on 9 June 1900 because of the resignation of Varney Parkes.
| Date | Event | |
|---|---|---|
| 4 June 1900 | Writ of election issued by the Speaker of the Legislative Assembly.[1] | |
| 7 June 1900 | Day of nomination | |
| 9 June 1900 | Polling day | |
| 16 June 1900 | Return of writ |
While Sydney Smith was declared elected, the by-election was declared void by the Elections and Qualifications Committee because of irregularities in the way the returning officer dealt with unused ballot papers and that people had voted who did not have an elector's right at the time the writ was issued.[2] Thomas Taylor won the subsequent by-election.[3]