Leon James is an Indian film composer and singer. He made his debut by recording two songs for the Tamil film, Kanchana 2 (2015) directed by Raghava Lawrence, before earning acclaim for his work in Ko 2.

Leon James became interested in music as a result of his father Noel James's involvement in the industry as A. R. Rahman's manager, and began piano lessons aged three. He played in a college band called Zinx alongside Anirudh Ravichander, with the pair remaining close friends. He is also currently a part of Project Yuj, a "neo-Carnatic funk" band alongside Aalap Raju, Prakash Hariharan and Jeoraj George and the team released an independent album in November 2014. Prior to making his debut as a composer, Leon has worked as a keyboardist for stage shows and film albums composed by Santhosh Narayanan, Anirudh Ravichander and Thaman.