| Official Name: | Lake Five, Wisconsin |
| Pushpin Map: | Wisconsin#USA |
| Subdivision Type: | Country |
| Subdivision Name: |  United States |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Waukesha |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 981 |
| Coordinates: | 43.1925°N -88.2708°W |
| Area Code: | 262 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1567735 |
Lake Five is an unincorporated community located in the village of Richfield, Washington County, Wisconsin, United States. Lake Five is located on County Highway Q along the southern border of Washington County; it abuts the town of Lisbon, Waukesha County to the south. The Lake Five post office was established in May 1855 by its first postmaster, Patrick McGovern.[1]