Duchouquet Township is one of the fourteen townships of Auglaize County, Ohio, United States. The 2000 census found 14,329 people in the township, 3,111 of whom lived in the unincorporated portions of the township.
Most of Wapakoneta, the largest city and county seat of Auglaize County, is located in southwestern Duchouquet Township, and the village of Cridersville is located in the township's northeast.
Duchouquet Township is the largest township in the county, containing forty-two whole sections. It is the largest township in the county, both in population and in area. The Auglaize River flows through the township.
A significant Council House was built in the area by the Shawnee, who arrived in the area after the Miami were forced out in the 1780s. This structure was a meeting place for the most prominent Native American leaders in the region, such as Blue Jacket, Chief Logan, Little Turtle, and Tecumseh. Meanwhile, the township was also the site of an early Quaker mission.
Duchouquet Township was formed on March 4, 1833 while still part of Allen County.
The southern sections of Duchouquet Township are served by the Wapakoneta post office (45895) with the northern section being served by the Cridersville branch of the Lima post office (45806).
Major highways include Interstate 75 which crosses the county from north to south, passing through both municipalities, and United States Highway 33 which sits on the township's southern border and passes through Wapakoneta.