Natarajan Ganesh Kumar, popularly known as Kanjira Ganesh  is an Indian percussionist, teacher and music composer. He develops new techniques to play the kanjira and is the first south Indian percussionist to receive a Fulbright Fellowship award, given by the United States Department of State.

He has also invented a synthetic Kanjira, released by Cooperman Frame Drums in Vermont, under the "artist innovation" series.He has accompanied south Indian musicians including MS Subbulakshmi, Balamurali Krishna, KJ Yesudas, Mandolin Srinivas, L Subramaniam and Ravikiran.