| Lake Tondano | |
| Location: | North Sulawesi, Indonesia |
| Coordinates: | 1.228°N 124.898°W |
| Type: | lake |
| Pushpin Map: | Indonesia |
| Pushpin Map Alt: | Location of the lake in Indonesia. |
Lake Tondano is the largest lake in North Sulawesi, Indonesia.
The lake is approximately from the city of Manado and is above sea level.[1]
In recent years there have been reports of decreasing water levels at Lake Tondano; from 1934 when it was, to 1993 to, in 1996 and in 2010.[2]
The halfbeak fish Tondanichthys kottelati and calanoid copepod Phyllodiaptomus sulawesensis are endemic to the lake.