Lake Towuti (Indonesian: Danau Towuti) is a lake in East Luwu Regency, South Sulawesi province, Indonesia.

[1] The Larona River[2] flows from the lake to the Boni Bay.

Together with the other lakes in the Malili Lake system, Towuti has a large number of endemic fishes (Telmatherinid sail-fin silversides, Glossogobius and Mugilogobius gobies, Nomorhamphus halfbeaks and Oryzias ricefishes), Caridina shrimps, Parathelphusid crabs (Nautilothelphusa, Parathelphusa and Syntripsa) and Tylomelania snails.

[1][3][4] Among these, Caridina spongicola lives on freshwater sponges, making it one of only two known commensal species of freshwater shrimp (the other is a Limnocaridina shrimp that lives in mussels in Lake Tanganyika, East Africa).

This South Sulawesi location article is a stub.