Siddharth Suryanarayan, mononymously known as Siddharth, is an Indian film actor, playback singer and screenplay writer. After his business management studies, Siddharth chose to work in film making and worked as an assistant director before making his acting debut in the 2003 Tamil film Boys. In the subsequent years, he has worked in many Tamil, Telugu and Hindi films.

Siddharth was born in Chennai, Tamil Nadu. He studied at DAV Boys Senior Secondary School, Chennai and Sardar Patel Vidyalaya, Delhi. He got his Bachelor of Commerce (Honors) degree from Kirori Mal College, New Delhi. Siddharth was popularly known as Sidy in school and college, and was part of the reputed theatre group of the college The Players. He was also president of the colleges debating society and attended the World Debating Championships. He went on to complete his MBA in 2001 from S P Jain Institute of Management and Research, Mumbai. In 2006, he divorced his wife of four years, Meghna. The couple grew up together in New Delhi.