Shanthi Ranganathan is an Indian social worker and the founder of T. T. Ranganathan Clinical Research Foundation, a non governmental organization managing the TTK Hospital, a medical centre based in Chennai for the treatment and rehabilitation of drug and alcohol addicts. She is the first recipient of the UN Vienna Civil Society Award and a recipient of the 1992 Padma Shri, the fourth highest civilian award from the Government of India for her contributions to the society.
Shanthi Krishna (born 2 January 1962) is an Indian actress and dancer known for her leading roles in Malayalam and Tamil films. As a star in the 1980s and 1990s, she won the Kerala State Film Award for Best Actress for her performance as Sharadammini in Chakoram (1994), the Filmfare Award for Best Supporting Actress – Malayalam for her performance in Njandukalude Nattil Oridavela, and the Kerala state television award for best actress.