| Official Name: | Blaine Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Kansas |
| Subdivision Type2: | County |
| Subdivision Name2: | Clay |
| Area Total Km2: | 109.59 |
| Area Land Km2: | 108.56 |
| Area Water Km2: | 1.03 |
| Area Total Sq Mi: | 42.31 |
| Area Land Sq Mi: | 41.92 |
| Area Water Sq Mi: | 0.4 |
| Area Water Percent: | 0.94 |
| Population As Of: | 2000 |
| Population Total: | 259 |
| Population Density Km2: | 2.4 |
| Population Density Sq Mi: | 6.2 |
| Elevation M: | 367 |
| Elevation Ft: | 1204 |
| Coordinates: | 39.3639°N -97.1836°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0476018 |
Blaine Township is a township in Clay County, Kansas, USA. As of the 2000 census, its population was 259.
Blaine Township covers an area of 42.31sqmi and contains no incorporated settlements. According to the USGS, it contains two cemeteries: Republican City and Wilson.
The streams of Chestnut Branch, Huntress Creek, North Branch Five Creek, Otter Creek and Reeder Branch Five Creek run through this township.