Siddharth Suryanarayan is a Tamil-born Indian movie actor who has appeared in Tamil, Telugu and Hindi films.

Siddharth started in films as an assistant director to Mani Ratnam, for the critically acclaimed Tamil film Kannathil Muthamittal. His first role was in Boys as "Munna", directed by S. Shankar. His mentor Mani Ratnam then offered him a role in the Tamil film Aayitha Ezhuthu. His first solo lead role was the role of Santosh in the Telugu film Nuvvostanante Nenoddantana (2005) opposite Trisha Krishnan, which was commercially successful.