Jyothika Saravanan (née Sadanah; born 18 October 1977) is an Indian actress who predominantly appears in Tamil films. She also acted in some Telugu, Malayalam, Kannada and Hindi films. She won three Filmfare Awards, three Tamil Nadu State Film Awards,four Dinakaran Awards, International Tamil Film Awards and other awards and nominations. She is also a recipient of the Kalaimamani Award. She has been ranked among the best actresses of South India by The Times of India.She debuted in Bollywood in the Hindi film Doli Saja Ke Rakhna (1997), directed by Priyadarshan. She starred in her first Tamil film Vaali (1999) and her first Telugu film Tagore (2003), opposite Chiranjeevi. She received her first Filmfare Awards for Vaali (1999) as Filmfare Award for Best Female Debut – South. She was awarded the Filmfare Best Tamil Actress Award for Kushi (2000) A string of successful films followed and gained prominence for her performances in Kushi (2000), Perazhagan (2004), Chandramukhi (2005) and Mozhi, (2007).
Jyothika left the industry at the peak of her career marrying Tamil actor Suriya on 11 September 2006, after being engaged in a relationship for several years, and with whom she was paired in seven films. She made a comeback in the film 36 Vayadhinile (2015) where her performance was given strong reviews and she received Filmfare Critics Award for Best Actress – South for the movie.
After the success of 36 Vayadhinile, she appeared in a series of Woman centric movies like Magalir Mattum (2017), Naachiyaar (2018), Kaatrin Mozhi (2018), Raatchasi (2019), Ponmagal Vandhal (2020) and also played lead female role in Mani Ratnam's multi-starrer Chekka Chivantha Vaanam (2018).
She is also known as Sadanah and Jyothika Saravanan.