Krishnan Nair Shantakumari Chithra, often credited as K. S. Chithra or simply Chithra, is an Indian playback singer and Carnatic musician from Kerala. Chithra also sings Indian classical, devotional, and popular music. She has recorded more than 25,000 songs in various Indian languages, including Malayalam, Telugu, Kannada, Tamil, Hindi, Bengali, Oriya, Punjabi, Gujarati, Tulu, Rajasthani, Urdu, Sanskrit, and Badaga, as well as foreign languages such as Malay, Latin, Arabic, Sinhalese, English and French.

Chithra made her debut in the Tamil film industry through the song "Poojaikketha Poovithu" from the film Neethana Antha Kuyil (1985), which was composed by Ilaiyaraaja. She was given the title Chinnakuyil after singing the song "Chinna Kuyil Paadum" from the 1985 released film Poove Poochudava.