| Official Name: | Rockville Township |
| Settlement Type: | Township |
| Image Map1: | Map of Illinois highlighting Kankakee County.svg |
| Mapsize1: | 150px |
| Map Caption1: | Kankakee County's location in Illinois |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Kankakee |
| Leader Title: | Supervisor |
| Leader Name: | Richard Moran |
| Established Title: | Established |
| Established Date: | May 9, 1853 |
| Area Total Sq Mi: | 36.6 |
| Area Land Sq Mi: | 36.45 |
| Area Water Sq Mi: | 0.15 |
| Area Water Percent: | 0.41 |
| Population As Of: | 2010 |
| Population Density Sq Mi: | 24.1 |
| Elevation M: | 195 |
| Elevation Ft: | 640 |
| Coordinates: | 41.2525°N -87.9478°W |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP codes |
| Postal Code: | 60901, 60914, 60950 |
| Blank Name: | FIPS code |
| Blank Info: | 17-091-65195 |
| Pop Est As Of: | 2016 |
| Pop Est Footnotes: | [1] |
| Population Est: | 852 |
| Unit Pref: | Imperial |
Rockville Township is one of seventeen townships in Kankakee County, Illinois, USA. As of the 2010 census, its population was 879 and it contained 326 housing units.[2] It was formerly a township of Will County until Kankakee County was created. The township's name may have been derived from a Potawatomi village known to the pioneers as "Little Rock Village."
According to the 2010 census, the township has a total area of, of which (or 99.59%) is land and (or 0.41%) is water.[2]
(This list is based on USGS data and may include former settlements.)
The township contains these two cemeteries: Blooms Grove and DeSelm.
The township is governed by an elected Town Board of a Supervisor and four Trustees. The Township also has an elected Assessor, Clerk, Highway Commissioner and Supervisor. The Township Garage is located on Manteno-Deselm Road, Manteno Illinois 60950
Rockville Township used to have 2 schools. Taylor Schoolhouse was a one-room school located near Deselm which opened in 1905 and closed in 1954. Deselm School was located in Deselm and that school also closed in 1954 when the schools were consolidated into the Manteno school district.