| Official Name: | Kilfoil Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Nebraska |
| Subdivision Type2: | County |
| Subdivision Name2: | Custer |
| Area Total Km2: | 298.57 |
| Area Land Km2: | 298.48 |
| Area Water Km2: | 0.09 |
| Area Total Sq Mi: | 115.28 |
| Area Land Sq Mi: | 115.25 |
| Area Water Sq Mi: | 0.03 |
| Area Water Percent: | 0.03 |
| Population As Of: | 2020 |
| Population Footnotes: | [1] |
| Population Total: | 592 |
| Population Density Km2: | auto |
| Elevation M: | 806 |
| Elevation Ft: | 2644 |
| Coordinates: | 41.4886°N -99.7986°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0838078 |
Kilfoil Township is one of thirty-one townships in Custer County, Nebraska, United States. The population was 592 at the 2020 census.[1] A 2021 estimate placed the township's population at 587.[1]
The Village of Merna lies within the Township.