| Official Name: | Red Oak Township, Cedar County |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Cedar |
| Area Total Km2: | 61.28 |
| Area Land Km2: | 61.28 |
| Area Water Km2: | 0 |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 23.66 |
| Area Land Sq Mi: | 23.66 |
| Area Water Sq Mi: | 0 |
| Population As Of: | 2000 |
| Population Total: | 194 |
| Population Density Km2: | 3.2 |
| Population Density Sq Mi: | 8.2 |
| Elevation Footnotes: | [1] |
| Elevation M: | 250 |
| Elevation Ft: | 820 |
| Coordinates: | 41.8253°N -91.1814°W |
| Blank Name: | FIPS code |
| Blank Info: | 19-93552[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 0468592 |
Red Oak Township is one of seventeen townships in Cedar County, Iowa, United States. As of the 2000 census, its population was 194.
The first cabin in Red Oak Township was built in 1836 by the Oaks family.[3]
Red Oak Township covers an area of 23.66sqmi and contains no incorporated settlements. According to the USGS, it contains one cemetery, Red Oak.