| Official Name: | Lesmil, Ohio |
| Settlement Type: | Unincorporated community |
| Mapsize: | 250px |
| Pushpin Map: | Ohio |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Ohio |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Jackson |
| Unit Pref: | Imperial |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Footnotes: | [1] |
| Elevation M: | 236 |
| Elevation Ft: | 774 |
| Coordinates: | 39.1583°N -82.5708°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 45692 |
| Area Code: | 740 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1062851 |
Lesmil (previously known as Summit) is an unincorporated community in Washington Township, Jackson County, Ohio, United States. It is located about west of Hamden along Les Mil Road (County Road 33), at 39.1583°N -82.5708°W.[2]
In 1860, there was a telegraph station located here on the Marietta and Cincinnati Railroad.[3]