Mouni Roy (born September 28, 1985) is an Indian actress who works in Hindi cinema and television. She began her television career in 2006, gaining prominence with leading roles in the soap opera *Kyunki Saas Bhi Kabhi Bahu Thi*, the mythological series *Devon Ke Dev...Mahadev* (2011), and the supernatural fantasy series *Naagin* (2015). She made her Hindi feature film debut opposite Akshay Kumar in the period sports drama *Gold* (2018), earning a Filmfare Award nomination for Best Female Debut.

Roy subsequently starred in the espionage thriller *Romeo Akbar Walter* (2019) and the comedy-drama *Made in China* (2019). She received the IIFA Award for Best Supporting Actress for portraying Junoon in the fantasy action film *Brahmāstra: Part One – Shiva* (2022). In streaming television, she appeared in the drama series *Sultan of Delhi* (2023) and *Showtime* (2024), followed by roles in the film *Blackout* (2024) and the television series *Ab Hoga Hisaab* (2026).