Essex (formerly known as Essex—Windsor) is a federal electoral district in Ontario, Canada, represented in the House of Commons of Canada from 1867 to 1882 and since 1968.

The riding includes the Municipalities of LaSalle, Amhertburg, Essex, Kingsville, and the western/central portion of Lakeshore. See Elections Canada map.

Essex was created in the British North America Act of 1867. It consisted of Essex County. It was abolished in 1882 when it was redistributed into Essex North and Essex South ridings.

Essex was re-created in 1966 from Essex East, Essex South and Essex West. The new riding consisted initially of the Town of Essex, the Townships of Anderdon, Colchester North, Colchester South, Malden, Rochester, Sandwich South, Tilbury North and Tilbury West, and the southern parts of the Township of Sandwich West and the City of Windsor, and the southeastern part of the Township of Maidstone. The name of the electoral district was changed in 1972 to "Essex—Windsor".

In 1976, the riding was re-defined to consist of the Townships of Anderdon, Colchester North, Maidstone, Malden, Rochester, Sandwich South, Sandwich West, Tilbury North and Tilbury West, including the Town of Essex, but excluding the Town of Tecumseh and the Village of St. Clair Beach, and the southeast part of the City of Windsor.

In 1987, the riding was re-defined to consist of the southeastern part of the City of Windsor, the towns of Amherstburg, Belle River and Essex, and the townships of Anderdon, Maidstone, Malden, Rochester, Sandwich South, Sandwich West, Tilbury North and Tilbury West.

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