List of rivers flowing in the Lesser Sunda Islands (Indonesian: Kepulauan Nusa Tenggara), Indonesia. The main Lesser Sunda Islands are, from west to east: Bali, Lombok, Sumbawa, Flores, Sumba, Timor, Alor archipelago, Barat Daya Islands, and Tanimbar Islands.
This list is arranged by island in alphabetical order. The respective tributaries indented under each larger stream's name.