| Official Name: | Clay Township, Missouri |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Missouri |
| Subdivision Type2: | County |
| Subdivision Name2: | Adair |
| Area Total Km2: | 206.21 |
| Area Land Km2: | 206.10 |
| Area Water Km2: | 0.10 |
| Area Water Percent: | 0.05 |
| Population As Of: | 2010 |
| Population Total: | 626 |
| Population Density Km2: | 3.0 |
| Elevation Footnotes: | [1] |
| Elevation M: | 285 |
| Elevation Ft: | 935 |
| Coordinates: | 40.2797°N -92.4403°W |
| Blank Name: | FIPS code |
| Blank Info: | 29-14248[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 0766211 |
Clay Township is one of ten townships located in Adair County, Missouri, United States. As of the 2010 census, its population was 626.[3] It is named in honor of Kentucky politician Henry Clay.[4]
Clay Township covers an area of 206.2km2 and contains no incorporated settlements. It contains one cemetery, Richardson.
The streams of Bee Branch, Cottonwood Fork, Floyd Creek and Willow Branch run through this township.