Sumit Roy is an Indian screenwriter and director who works primarily in Hindi films and is based in Mumbai. Born in Delhi, he began his career as a managing partner at Kriya Communication in New Delhi, where he wrote and directed documentaries, short films and brand films. He then moved into television writing, working on more than a thousand episodes across genres, including Chandragupta Maurya and Sumit Sambhal Lega.

In films, he wrote dialogue and screenplay for Zubaan (2016), and went on to write Gehraiyaan (2022), Rocky Aur Rani Kii Prem Kahaani (2023) and the story of Homebound (2025). He created and wrote the Disney+ Hotstar series Showtime (2024), a drama set inside Bollywood. He has also written the screenplay for Prahaar: The Untold Story of Ujjwal Nikam.