Port Dover is an unincorporated community and former town located in Norfolk County, Ontario, Canada, on the north shore of Lake Erie. It is the site of the recurring Friday the 13th motorcycle rally. Prior to the War of 1812, this community was known as Dover Mills.

Norfolk County is a rural single-tier municipality on the north shore of Lake Erie in Southwestern Ontario, Canada with a 2016 population of 67,490. Despite its name, it is no longer a county by definition, as all municipal services are handled by a single level of government. The largest community in Norfolk County is Simcoe, whose 2016 population was 13,922. The other population centres are Port Dover, Delhi, Waterford and Port Rowan, and there are many smaller communities. For several years in the late 20th century, the county was merged with Haldimand County but the merged entity was dissolved in 2000.