A by-election was held in the state electoral district of Gosford on 8 April 2017. The by-election was triggered by the resignation of Kathy Smith (Labor) due to ill health.[1] It was held on the same day as the North Shore and Manly state by-elections.
Paralympian and local teacher. Former federal MP Belinda Neal had expressed interest in running as a candidate; however, a preselection ballot was not held.[4]