| Unit Pref: | Imperial |
| Settlement Type: | Township |
| Official Name: | Dunham Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | McHenry |
| Leader Title: | Supervisor |
| Established Title: | Established |
| Established Date: | November 6, 1849 |
| Area Total Sq Mi: | 35.97 |
| Area Land Sq Mi: | 35.96 |
| Area Water Sq Mi: | 0.01 |
| Area Water Percent: | 0.03 |
| Population As Of: | 2010 |
| Population Density Sq Mi: | 79.1 |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Website: | https://www.toi.org/Townships/McHenry_County/Dunham_Township/Dunham-Township |
| Pop Est As Of: | 2016 |
| Pop Est Footnotes: | [1] |
| Population Est: | 2753 |
| Blank Name: | FIPS code |
| Blank Info: | 17-111-21111 |
Dunham Township is located in McHenry County, Illinois, USA. As of the 2010 census, its population was 2,844 and it contained 1,035 housing units.[2] It includes southern portions of Harvard, most of the city being in Chemung Township.
Dunham Township changed its name from Byron Township on December 28, 1850, to avoid confusion with Byron Township and to honor a resident, Solomon J. Dunham.[3]
According to the 2010 census, the township has a total area of, of which (or 99.97%) is land and (or 0.03%) is water.[2]