Grant Township is a township in Story County, Iowa, USA. As of the 2000 census, its population was 1068.
Grant Township covers an area of 35.3 square miles (91 km2) and contains unincorporated village of Shipley and portions of the incorporated towns of Ames and Nevada. According to the USGS, it contains one cemetery: Saint Patrick Catholic Cemetery.
Interstate 35 runs north and south through the township and U.S. Route 30 runs east-west near the northern part of the township.