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.

She is considered as the one among the First ladies of India who was honored by the President of India.