Gudalur Narayanaswamy Balasubramaniam, popularly known as GNB, was an Indian Carnatic singer. He innovated the art through emphasis on laya control and reducing the gamakas which eventually made Carnatic music appeal to the lay and the learned alike. He was also a Tamil film actor. Ariyakudi Iyengar inspired him.

Sakuntalai is a 1940 Indian Tamil-language film directed by Ellis R. Dungan and starring M. S. Subbulakshmi and G. N. Balasubramaniam.