| Knife Lake, MN (Township) |
| Knife River, ND (Township) |
| Knight, IN (Township) |
| Knight Prairie Township, IL (Township) |
| Knight Town, WI (Town) |
| Knightdale, NC (Town) |
| Knightstown, IN (Town) |
| Knightsville, IN (Town) |
| Knob Noster, MO (City) |
| Knobel, AR (City) |
| Knollwood, TX (Village) |
| Knott County, KY (County) |
| Knowles, OK (Town) |
| Knowlton Town, WI (Town) |
| Knowlton Township, NJ (Township) |
