1913 Grey by-election

The Grey by-election of 1913 was a by-election held for during the 18th New Zealand Parliament. As no candidate won an absolute majority on the first ballot on 17 July, a second round was held on 24 July. The seat had become vacant due to the death of Arthur Guinness. Three candidates contested the seat, and it was won by the left-wing candidate, who was elected on the second ballot with Liberal support.

Results
The following tables give the election results: