Tay is a township in Central Ontario, Canada, located in Simcoe County in the southern Georgian Bay region.

[2] The current territory of Tay was home to the Wendat towns of Teanaostataé (St. Louis), and Taenhatentaron (St. Ignace).

During this warfare, the Jesuits Jean de Brébeuf and Gabriel Lalemant were killed at Taenhatentaron.

[3] In 1994, under countywide municipal restructuring, the Villages of Port McNicoll and Victoria Harbour were amalgamated with Tay.

The township comprises the villages and rural hamlets of Ebenezer, Elliots Corners, Melduf, Mertzs Corners, Ogden's Beach, Old Fort, Paradise Point, Port McNicoll, Riverside, Sturgeon Bay, Triple Bay Park, Vasey, Victoria Harbour, Waubaushene and Waverley.