| Seguin | |
| Official Name: | Township of Seguin |
| Settlement Type: | Township (single-tier) |
| Pushpin Map: | Canada Southern Ontario |
| Pushpin Mapsize: | 200 |
| Subdivision Type: | Country |
| Subdivision Name: | Canada |
| Subdivision Type1: | Province |
| Subdivision Name1: | Ontario |
| Subdivision Type2: | District |
| Subdivision Name2: | Parry Sound |
| Government Type: | Township |
| Leader Title: | Mayor |
| Leader Name: | Ann MacDiarmid |
| Leader Title1: | Federal riding |
| Leader Name1: | Parry Sound-Muskoka |
| Leader Title2: | Prov. riding |
| Leader Name2: | Parry Sound—Muskoka |
| Established Title: | Incorporated |
| Established Date: | January 1, 1998 |
| Area Land Km2: | 595.68 |
| Population As Of: | 2016 |
| Population Footnotes: | [1] |
| Population Total: | 4304 |
| Population Density Km2: | 7.2 |
| Timezone: | EST |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Postal Code Type: | Postal code span |
| Area Code: | 705, 249 |
| Coordinates: | 45.2882°N -79.8116°W |
| Website: | www.seguin.ca |
Seguin is a township in central Ontario, Canada, in the District of Parry Sound.
The Township of Seguin was created by Minister's Order, dated May 8, 1997. Pursuant to this Order, the Township of Seguin became a newly incorporated municipality, effective January 1, 1998.
The Township of Seguin is the amalgamated municipality of the former Townships of Christie, Foley and Humphrey, and the Village of Rosseau as well as an annexation of the western portion of the unorganized Township of Monteith.
The Township of Seguin is the most southerly municipality in the District of Parry Sound. It is also the first municipality in Northern Ontario in the Highways 69 and 400 corridor.
The township includes the communities of Black Road, Brignall, Dockmure, Dock Siding, Falding, Gordon Bay, Haines Lake, Hamer Bay, Hayes Corners, Holmur, Horseshoe Lake, Humphrey, Lake Joseph, Orrville, Otter Lake, Port Cockburn, Rose Point, Rosseau, Rosseau Road, Seguin Falls, South Parry, Stanley House, Swords and Turtle Lake. The administrative offices of the township are located in Humphrey.
In the 2021 Census of Population conducted by Statistics Canada, Seguin had a population of living in of total private dwellings, a change of from its 2016 population of . With a land area of 586.99km2, it had a population density of in 2021.[2]