Kasinathuni Viswanath (born 19 February 1930) is an Indian film, sound designer turned director and actor known for his works in Telugu Cinema. He is the recipient of the National Film Awards,Filmfare Awards and Nandi Awards. Viswanath's Bollywood films include Sargam, Kaamchor, Sanjog, Jaag Utha Insan, Eeshwar,Sur Sangam, Shubh Kaamna, Sangeet and Dhanwaan.