| Official Name: | Pioneer Township, Cedar County |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Cedar |
| Area Total Km2: | 94.6 |
| Area Land Km2: | 94.56 |
| Area Water Km2: | 0.04 |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 36.53 |
| Area Land Sq Mi: | 36.51 |
| Area Water Sq Mi: | 0.02 |
| Population As Of: | 2000 |
| Population Total: | 1810 |
| Population Density Km2: | 19.1 |
| Population Density Sq Mi: | 49.6 |
| Elevation Footnotes: | [1] |
| Elevation M: | 265 |
| Elevation Ft: | 869 |
| Coordinates: | 41.9025°N -91.3169°W |
| Blank Name: | FIPS code |
| Blank Info: | 19-93333[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 0468519 |
Pioneer Township is one of seventeen townships in Cedar County, Iowa, United States. At the 2000 census, its population was 1,810.
Pioneer Township was established in 1848.[3]
Pioneer Township covers an area of 36.53sqmi and contains one incorporated settlement, Mechanicsville. According to the USGS, it contains four cemeteries: Andre, Pioneer, Rose Hill and Union.