Chetan Prakash Bhagat (born 22 April 1974) is an Indian author, columnist, screenwriter, and YouTuber. He was named one of Time magazine’s 100 Most Influential People in the World in 2010. Several of his novels have been adapted into films, including One Night @ the Call Center and Half Girlfriend.

Chetan Bhagat writes op-ed columns for English and Hindi newspapers, including Times of India and Dainik Bhaskar, focusing on youth and issues based on national development. Bhagat is also a motivational speaker and has given talks in leading MNCs and other institutions. He quit his international investment banking career in 2009, to devote his entire time to writing. In 2008, The New York Times called Bhagat "the biggest selling English language novelist in India’s history". Bhagat, a graduate of Indian Institute of Technology (IIT) Delhi and IIM Ahmedabad, is seen more as a youth icon than as an author.