| Official Name: | Madison Lake, 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: | Madison |
| Unit Pref: | Imperial |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 1001 |
| Coordinates: | 39.8708°N -83.3797°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 43140 |
| Area Code: | 740 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1048944 |
Madison Lake is an unincorporated community in Union Township, Madison County, Ohio, United States. It is located east of London around the shore of Madison Lake, for which it was named.[1]