Wabash Township is one of thirteen townships in Tippecanoe County, Indiana, United States. As of the 2010 census, its population was 59,279 and it contained 21,448 housing units making it the most populous township in Tippecanoe County.

Tippecanoe County is located in the west-central portion of the U.S. state of Indiana about 22 miles east of the Illinois state line and less than 50 miles from the Chicago and the Indianapolis metro areas. As of the 2020 census, the population was 186,251. The county seat and largest city is Lafayette. It was created in 1826 from Wabash County portion of New Purchase and unorganized territory.