| Unit Pref: | Imperial |
| Settlement Type: | Township |
| Official Name: | Hollis Township |
| Image Map1: | Map of Illinois highlighting Peoria County.svg |
| Mapsize1: | 150px |
| Map Caption1: | Peoria County's location in Illinois |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Peoria |
| Leader Title: | Supervisor |
| Leader Name: | Gary Thomas |
| Leader Title1: | Clerk |
| Leader Name1: | Roger Hostetter, Sr. |
| Leader Title2: | Assessor |
| Leader Name2: | Debra Emert |
| Leader Title3: | Road Commissioner |
| Leader Name3: | Dennis Beckman |
| Established Title: | Established |
| Established Date: | November 6, 1849 |
| Named For: | Denzil Hollis |
| Area Total Sq Mi: | 25.11 |
| Area Land Sq Mi: | 23.97 |
| Area Water Sq Mi: | 1.13 |
| Area Water Percent: | 4.50 |
| Population As Of: | 2010 |
| Population Density Sq Mi: | 78.5 |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Website: | http://www.hollistownship.org |
| Pop Est As Of: | 2016 |
| Pop Est Footnotes: | [1] |
| Population Est: | 1881 |
| Blank Name: | FIPS code |
| Blank Info: | 17-143-35645 |
Hollis Township is located in Peoria County, Illinois. As of the 2010 census, its population was 1,881 and it contained 768 housing units.[2] The village of Mapleton is the only incorporated town in the township.
According to the 2010 census, the township has a total area of, of which (or 95.46%) is land and (or 4.50%) is water.[2]