Riddhi Sen is an Indian film actor who predominantly works in Bengali films. He is a regular actor of the theatre group Swapnasandhani and is an alumnus of South Point school, Kolkata. In 2010, he received a special talent award from his school for his achievements in the field of theatre. He is the youngest actor in India to receive the National Film Award for Best Actor for his performance in the film Nagarkirtan. In 2019, Film Companion ranked Sen's performance in Nagarkirtan among 100 Greatest Performances of the decade.

Early life
Born in Kolkata, Riddhi Sen is the son of Bengali stage and film actor Kaushik Sen and dancer Reshmi Sen, and grandson of actress Chitra Sen and actor Shyamal Sen. Sen has acted on stage from an early age, with his grandmother saying "From a very tender age he is performing at ‘Prachya’, I remember carrying him through the crowds at the age of 3."