| Lyon Township | |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Kansas |
| Subdivision Type2: | County |
| Subdivision Name2: | Geary |
| Area Total Km2: | 113.91 |
| Area Land Km2: | 112.54 |
| Area Water Km2: | 1.37 |
| Area Total Sq Mi: | 43.98 |
| Area Land Sq Mi: | 43.45 |
| Area Water Sq Mi: | 0.53 |
| Area Water Percent: | 1.2 |
| Population As Of: | 2000 |
| Population Total: | 298 |
| Population Density Km2: | 2.6 |
| Population Density Sq Mi: | 6.9 |
| Elevation M: | 348 |
| Elevation Ft: | 1142 |
| Coordinates: | 38.9222°N -96.8725°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0476700 |
Lyon Township is a township in Geary County, Kansas, USA. As of the 2000 census, its population was 298.
Lyon Township was established in 1877. It was named for Gen. Nathaniel Lyon.[1]
Lyon Township covers an area of 43.98mi2 and contains no incorporated settlements.
The streams of Carry Creek, Lyon Creek, Otter Creek and Schuler Branch run through this township.