Puslinch is a township in south-central Ontario, Canada, in Wellington County, surrounding the south end of Guelph. The main source of production is agricultural, spring water bottling and mining. Aggregate mining has been dominant throughout the county. About half of the township is forested, and a conservation area lies to the southwest. Near the western edge of the township, just outside Cambridge, Ontario, is Puslinch Lake, the largest kettle lake in North America. It is part of the Guelph census metropolitan area.

Wellington County is a county located in Southwestern Ontario, Canada and is part of the Greater Golden Horseshoe. The county, made up of two towns and five townships, is predominantly rural in nature. However many of the residents in the southern part of the county commute to urban areas such as Guelph, Kitchener, Waterloo, Brampton, Mississauga, Toronto and Hamilton for employment. The northern part of the county is made up of mainly rural farming communities, except for a few larger towns such as Mount Forest and Arthur. According to the 2021 census, the population of the county was 241,026.