- Birthday: 12. December 1931
- Birthplace: West Bengal
- Awards: Filmfare Lifetime Achievement Award – South (1984), Kalaimamani by Tamil Nadu government, SIIMA Lifetime Achievement Award, 2012 §
Sankaramanchi Janaki (born December 12, 1931), popularly known as Sowcar Janaki, is a south-Indian actress who has acted in over 385 Tamil, Telugu, Kannada, Hindi and Malayalam films. She also performed on stage in over 300 shows and was a radio artist during her earlier years. She became a popular actress with hits such as Sowcar (Telugu), Pudhiya Paravai (Tamil) and Iru Kodugal (Tamil). She worked with famous directors such as Dada Mirasee and K Balachandar. She served as jury member for the National Indian Films awards committee and as chair person for state Telugu Films awards committee.
She is the elder daughter of T. Venkoji Rao and Sachi Devi of Rajahmundry. She completed her earlier studies from Gauhati University in Assam and has received honorary Doctorate from University of Arizona. She has two daughters and a son, four grandchildren and two great granddaughters.