| Lake Mallos | |
| Pushpin Map: | Finland |
| Location: | Kangasniemi |
| Coords: | 62.0167°N 69°W |
| Type: | Lake |
| Catchment: | Kymijoki |
| Basin Countries: | Finland |
| Area: | 10.157km2 |
| Depth: | 3.99m (13.09feet) |
| Max-Depth: | 12.4m (40.7feet) |
| Volume: | 0.0405km3 |
| Shore: | 52.2km (32.4miles) |
| Elevation: | 102.2m (335.3feet) |
| Frozen: | December–April |
| Islands: | Härkösaari, Lehtosaari |
Lake Mallos (Finnish: Mallos) is a medium-sized lake in Finland. It is situated in the municipality of Kangasniemi in the Southern Savonia region in eastern Finland. The lake belongs to the Kymijoki main catchment area.[1]