Template:1872 Ontario provincial by-elections/London

Ontario provincial by-election, September 4, 1872: London Resignation of John Carling
Party	Candidate	Votes	%	±%
	Conservative	William Ralph Meredith	932	51.12	−12.71
	Liberal	J. Durand	891	48.88	+12.71
Total valid votes			1,823	100.0	+18.15
	Conservative hold		Swing		−12.71
Source: History of the Electoral Districts, Legislatures and Ministries of the Province of Ontario