The Home District was one of four districts of the Province of Quebec created in 1788 in the western reaches of the Montreal District and detached in 1791 to create the new colony of Upper Canada. It was abolished with the adoption of the county system in 1849.

Originally established as Nassau District in 1788,^[1] it was renamed as the "Home District" in 1792,^[2] The district was originally bounded to the east by a line running north–south from the mouth of the Trent River and to the west by a line running north–south 'intersecting the extreme projection of Long Point into the lake Erie."^[3] The northern boundaries were vague and overlapping Indian land. The district town was originally Newark, later Niagara-on-the-Lake.

In 1798, the Niagara District was created from Lincoln County and Haldimand County, and the London District was formed from the counties of Middlesex, Norfolk and Oxford, both of which were detached from the Home District. The remainder was organized as follows:

• Armstrong, Frederick Henry (1985). Handbook of Upper Canadian Chronology. Dundurn historical document series, no. 3. Toronto: Dundurn Press. ISBN 978-0-919670-92-1. OCLC 12966852. First published as Armstrong, Frederick Henry (1967). Handbook of Upper Canadian chronology and territorial legislation. London, Ont.: Lawson Memorial Library at The University of Western Ontario. OCLC 20212.
• "Early Districts and Counties 1788-1899". Archives of Ontario. Retrieved 2016-05-30.