| Official Name: | Lyon Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Kansas |
| Subdivision Type2: | County |
| Subdivision Name2: | Cloud |
| Area Total Km2: | 141.76 |
| Area Land Km2: | 141.73 |
| Area Water Km2: | 0.02 |
| Area Total Sq Mi: | 54.73 |
| Area Land Sq Mi: | 54.72 |
| Area Water Sq Mi: | 0.01 |
| Area Water Percent: | 0.01 |
| Population As Of: | 2000 |
| Population Total: | 103 |
| Population Density Km2: | 0.7 |
| Population Density Sq Mi: | 1.9 |
| Elevation M: | 427 |
| Elevation Ft: | 1401 |
| Coordinates: | 39.3722°N -97.7586°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0475982 |
Lyon Township is a township in Cloud County, Kansas, USA. As of the 2000 census, its population was 103.
Lyon Township was originally called Fowler Township (in honor of a pioneer settler), and under the latter name was organized in April, 1872. About a month later it was renamed for General Nathaniel Lyon.[1]
Lyon Township covers an area of 54.73sqmi and contains no incorporated settlements.