| Official Name: | Frankfort Township |
| Settlement Type: | Township |
| Image Map1: | Map of Illinois highlighting Will County.svg |
| Mapsize1: | 150px |
| Map Caption1: | Will County's location in Illinois |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Will |
| Leader Title: | Supervisor |
| Leader Name: | Jim Moustis |
| Established Title: | Established |
| Established Date: | November 6, 1849 |
| Area Total Km2: | 95.39 |
| Area Land Km2: | 95.31 |
| Area Water Km2: | 0.08 |
| Area Total Sq Mi: | 36.83 |
| Area Land Sq Mi: | 36.8 |
| Area Water Sq Mi: | 0.03 |
| Area Water Percent: | 0.08 |
| Population As Of: | 2010 |
| Population Density Sq Mi: | 1550.3 |
| Elevation M: | 118 |
| Elevation Ft: | 387 |
| Coordinates: | 41.5117°N -87.8525°W |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP codes |
| Postal Code: | 60423, 60448, 60467, 60477, 60487 |
| Area Code: | 708, 779, 815 |
| Blank Name: | FIPS code |
| Blank Info: | 17-197-27631 |
| Pop Est As Of: | 2016 |
| Pop Est Footnotes: | [1] |
| Population Est: | 59278 |
| Unit Pref: | Imperial |
Frankfort Township is one of 24 townships in Will County, Illinois. As of the 2010 census, its population was 57,055 and it contained 19,720 housing units.[2]
According to the 2010 census, the township has a total area of, of which (or 99.92%) is land and (or 0.08%) is water.[2] It includes almost all of Frankfort and Mokena as well as small portions of Tinley Park and Orland Park.
Frankfort Township is bordered by Harlem Avenue (Illinois Route 43) on the east (where Cook County and Will County share a border), 183rd Street and Orland Parkway on the north (which is also the Cook-Will county border), Townline Road on the west, and Steger Road on the south.
The township contains these eight cemeteries: Frankfort Township, Frankfort, Pioneer Memorial, Pleasant Hill, Saint John's United Church of Christ, Saint Mary's, Stellwagen, and Union Burial Society.