Siddharth Mahadevan is an Indian playback singer and composer who is known for his songs in the film Bhaag Milkha Bhaag in which he sang "Zinda" and the rock version of the title song "Bhaag Milkha Bhaag". He got further acclaim for the song Malang by music director Pritam in the movie Dhoom 3. He has also composed music for the Marathi film Swapna Tujhe ni Majhe with his cousin Soumil.
He is the son of Shankar Mahadevan who is a film music composer and playback singer from India. He completed his education from Sacred Heart High School in Vashi. He completed his under-graduate studies from SIES College of Sion and is currently studying in R.D National college.
Siddharth Mahadevan composed a jingle for RADIO CITY'S kasakay mumbai.
He also composed a jingle for DISCOVERY TLC's Chew.