| Official Name: | Grant Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Story |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 35.3 |
| Area Land Sq Mi: | 35.3 |
| Area Water Sq Mi: | 0.0 |
| Area Water Percent: | 0.0 |
| Population As Of: | 2000 |
| Population Total: | 1068 |
| Population Density Sq Mi: | 30 |
| Elevation Ft: | 971 |
| Coordinates: | 41.9869°N -93.5264°W |
| Postal Code Type: | ZIP Code |
| Postal Code: | 50201, 50010 |
| Area Code: | 515 |
Grant Township is a township in Story County, Iowa, United States. As of the 2000 census, its population was 1,068.
Grant Township covers an area of 35.3sqmi 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.