Tay is a township in Central Ontario, Canada, located in Simcoe County in the southern Georgian Bay region. The township was named in 182…Tay is a township in Central Ontario, Canada, located in Simcoe County in the southern Georgian Bay region. The township was named in 1822 after a pet dog of Lady Sarah Maitland, wife of Sir Peregrine Maitland, Lieutenant Governor of Upper Canada. Two other adjoining townships were also named for her pet dogs, Tiny and Flos.