| Official Name: | Martinton Township |
| Settlement Type: | Township |
| Image Map1: | Map of Illinois highlighting Iroquois County.svg |
| Mapsize1: | 150px |
| Map Caption1: | Iroquois County's location in Illinois |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Iroquois |
| Established Title: | Established |
| Established Date: | September 1857 |
| Area Total Sq Mi: | 54.41 |
| Area Land Sq Mi: | 54.22 |
| Area Water Sq Mi: | 0.19 |
| Area Water Percent: | 0.35 |
| Population As Of: | 2010 |
| Population Density Sq Mi: | 17.4 |
| Elevation M: | 190 |
| Elevation Ft: | 623 |
| Coordinates: | 40.9011°N -87.7383°W |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP codes |
| Postal Code: | 60912, 60931, 60951, 60970 |
| Blank Name: | FIPS code |
| Blank Info: | 17-075-47293 |
| Pop Est As Of: | 2016 |
| Pop Est Footnotes: | [1] |
| Population Est: | 904 |
| Unit Pref: | Imperial |
Martinton Township is one of twenty-six townships in Iroquois County, Illinois, USA. As of the 2010 census, its population was 943 and it contained 460 housing units.[2] Buchanan Township formed from a portion of Papineau Township, then known as Wygant Township, in September 1857; its name was changed to Martinton Township on an unknown date.
According to the 2010 census, the township has a total area of, of which (or 99.65%) is land and (or 0.35%) is water.[2]
The township contains these four cemeteries: Greentown, Mount Olivet, Old Burg and Teege.