| Official Name: | Elk Falls Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Kansas |
| Subdivision Type2: | County |
| Subdivision Name2: | Elk |
| Area Total Km2: | 152.07 |
| Area Land Km2: | 151.79 |
| Area Water Km2: | 0.28 |
| Area Total Sq Mi: | 58.72 |
| Area Land Sq Mi: | 58.61 |
| Area Water Sq Mi: | 0.11 |
| Area Water Percent: | 0.18 |
| Population As Of: | 2000 |
| Population Total: | 196 |
| Population Density Km2: | 1.3 |
| Population Density Sq Mi: | 3.3 |
| Elevation M: | 297 |
| Elevation Ft: | 974 |
| Coordinates: | 37.3458°N -96.2075°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0469873 |
Elk Falls Township is a township in Elk County, Kansas, United States. As of the 2000 census, its population was 196.
Elk Falls Township covers an area of 58.72sqmi and contains one incorporated settlement, Elk Falls. According to the USGS, it contains one cemetery, Mount Olivet.
The streams of South Fork Wildcat Creek and Wildcat Creek run through this township.
Elk Falls Township contains one airport or landing strip, Elk County Airport.