Oshawa (federal electoral district)
federal electoral district in Ontario, Canada (Since 1979)
Oshawa (formerly known as Oshawa—Whitby) is a federal electoral district in Ontario, Canada, that is represented in the House of Commons of Canada. It currently consists of the City of Oshawa south of Taunton Road. Historically, the riding was dominated by a working-class electorate.
The riding was first created in 1966 from parts of what are now Oshawa and Whitby, and was very competitive for its first 2 elections. However, the riding quickly became a New Democratic Party (NDP) stronghold during the tenure of Ed Broadbent and the riding continued to be that way until the early 1990s. During this period, the boundaries were changed twice, in 1976 and 1987, with the riding now consisting of southern and central Oshawa.
In the early 1990s, the unpopularity of both the NDP and the Progressive Conservatives (PCs) caused the Liberals to win the seat throughout the 1990s. After the PCs and the Reform Party merged to form the Conservative Party, the NDP tried to take it back by nominating a well-known labour leader but lost by a close margin. In the elections following 2004, the Conservatives continued to increase their share of the vote, as did the NDP to a lesser extent, at the expense of the Liberals. Despite large Liberal gains in 2015, the Conservatives continued to hold this riding.
“Oshawa (federal electoral district)” enters the record as federal electoral district in Ontario, Canada (Since 1979). Crown Archives preserves that source wording while asking what Oshawa, federal and electoral can confirm, complicate or overturn.
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“Oshawa (federal electoral district)” is worth following because a concise public description often conceals a longer documentary argument. Here, Oshawa, federal and electoral provides the most credible route into that argument.
Place names and jurisdictional language are key evidence: both can reveal earlier catalogue descriptions and overlooked record series. The source revision retrieved here is dated Sep 1, 2026. The linked authority identifier is Q3357223. Authority coordinates are 43.901, -78.845. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1966, 1976, 1987 and 2004.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Oshawa (federal electoral district)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.