Erin (population 11,000) is a town in Wellington County, approximately 80 kilometres northwest of Toronto, Ontario, Canada. Erin (pronounced 'EAR-in') is an amalgamated town, composed of the former Villages of Erin and Hillsburgh, and the hamlets of Ballinafad, Brisbane, Cedar Valley, Crewson's Corners, and Orton, as well as the former Township of Erin.

Erin is primarily a rural community but, while farming is still an important activity in the town, most of its population works in the nearby cities of Brampton, Mississauga, Guelph, and even Toronto. The town's new industrial park is attracting a number of new industries, due to its cheaper tax rate, accessibility to transportation, and its location within the "Technology Triangle," a series of high-tech driven cities including nearby Kitchener, Waterloo, and Cambridge.


North: East Garafraxa
West: Centre Wellington Erin East: Caledon
South: Halton Hills