List of rivers of Sri Lanka

The following table lists most rivers of Sri Lanka. Since Sri Lanka is a trilingual country, some rivers may have a Sinhala name (i.e. Kalu Ganga), while other have an English name (i.e. Kelani River). There are two words meaning "river" in the Sinhala language, namely Ganga (ගඟ) and Oya (ඔය), of which the usage of both terms is arbitrary. At 335 km, the Mahaweli River is the longest river on the island, its drainage basin covering more than one-fifth of the island. It is estimated that there are 103 rivers in Sri Lanka.

List of minor rivers (up to 100km in length)
Malala oya - Hambanthota District karanda Oya - Potuvil Ampara District Heda Oya - Arugambay (Arunagamthota), Ampare District wil oya - Ampara District