The 1883 Bruce by-election was a by-election held on 29 June in the electorate during the 8th New Zealand Parliament.
The by-election was caused by the death on 16 May of the incumbent MP James Rutherford.
On a show of hands Mr Gillies won, but the third candidate William A. Mosley demanded a poll.
The by-election was won by James McDonald.
However in the Gillies won the seat and McDonald came third.
The following table gives the election result: