| Mad Tom Lake | |
| Pushpin Map: | New York |
| Pushpin Map Caption: | Location of Mad Tom Lake within New York |
| Location: | Herkimer County, New York |
| Coords: | 43.4109°N -74.9156°W |
| Type: | Lake |
| Outflow: | Mad Tom Brook |
| Elevation: | [1] |
| Cities: | Wilmurt |
Mad Tom Lake is located north of Wilmurt in Herkimer County, New York. It drains southwest via Mad Tom Brook which flows into the West Canada Creek.