Rita Thyagarajan (born Sucharitha Thyagarajan) known by the mononym Rita, is an Indian playback singer who sings in Tamil, Telugu, Kannada and Malayalam.

Rita started her career with D. Imman, who contacted her after listening to her demo CD which she had recorded after college. "Yendan Varungaalaveetukaraney" from the movie Aanai was the first song she recorded and from then she has recorded over 300 songs and jingles in all major South Indian languages. She got her big break with the song "Vada Mapillai" in Villu, and then recorded songs like "Allegra" and "Mambo mamiyaa" for Kandasamy in Tamil. She was nominated for the Filmfare Award for the song "Allegra". Her song "Vada Mapillai" won Best Song of the Year at the Radio Mirchi Music awards. She recorded songs in Telugu like "Khilaadikoona" from Athidhi for Mani Sharma and "Panchadharabomma" for M. M. Keeravani which again won the Song of the Year award at the Radio Mirchi music awards.

Rita has worked with music directors like Ilaiyaraaja, Yuvan Shankar Raja, Mani Sharma, D. Imman, Vidyasagar, Devi Sri Prasad, M. Jeychandran, and M. M. Keeravani. She also performs for stage shows in countries like Singapore, Malaysia, Dubai, Canada, USA, and Australia.