Rathnayaka Mudiyanselage Ranjith Madduma Bandara (born 25 August 1954) is a Sri Lankan politician and a member of the Parliament of Sri Lanka.

His father R. M. Gunasekera, former member of the parliament for Bibile, was assassinated when he was seven years old.

He was educated at Ananda College and became a planter and a businessman.

On 11 February 2020, he was appointed as the inaugural general secretary of the Samagi Jana Balawegaya.

This article about a politician from Uva Province, Sri Lanka is a stub.