Mamitha Baiju (born June 22, 2001) is an Indian actress who predominantly works in Malayalam and Tamil cinema. She made her acting debut in 2017 with the Malayalam comedy-drama Sarvopari Palakkaran, where she played Raji. She subsequently appeared in films such as Honey Bee 2: Celebrations, Varathan, Dakini, Vikruthi and An International Local Story, mostly in supporting roles Her career gradually gained momentum with films like Kilometers and Kilometers (2020) and Operation Java (2021). She received widespread appreciation for her performance as Anju in the 2021 sports drama Kho Kho, for which she won the Kerala Film Critics Association Award for Best Supporting Actress. Interestingly, she also worked as an assistant director on the same film Mamitha gained further recognition with her portrayal of Sona in Girish A.D.’s coming-of-age comedy Super Sharanya (2022). She followed this with notable performances in Pranaya Vilasam (2023) as Gopika and Ramachandra Boss & Co (2023) as Sophia Her major breakthrough came in 2024 with Premalu, directed by Girish A.D. She played Reenu Roy opposite Naslen, and her performance received widespread appreciation from audiences. The film went on to become one of the highest-grossing Malayalam films of the year and established her as one of the most popular young actresses in Malayalam cinema. The same year, she made her Tamil film debut with Rebel, starring alongside G.V. Prakash Kumar as Sara Mary John Following the success of Premalu, Mamitha continued expanding her career into Tamil cinema with Dude (2025). She has since taken on several projects across Malayalam and Tamil cinema, further establishing her presence in South Indian films