By-elections to the 23rd Canadian Parliament
By-elections to the 23rd Canadian Parliament were held to fill vacancies in the House of Commons of Canada between the 1957 federal election and the 1958 federal election. The Progressive Conservative Party of Canada led a minority government for the 23rd Canadian Parliament.
Three vacant seats were filled through by-elections.
|Yukon||December 16, 1957||James Aubrey Simmons||Liberal||Erik Nielsen||Progressive Conservative||Election declared void||No|
|Hastings—Frontenac||November 4, 1957||George Stanley White||Progressive Conservative||Sidney Earle Smith||Progressive Conservative||Called to the Senate||Yes|
|Lanark||August 26, 1957||William G. Blair||Progressive Conservative||George Doucett||Progressive Conservative||Death||Yes|