Kasinadhuni Viswanath (19 February 1930 – 2 February 2023) was an Indian film director, screenwriter, lyricist and actor who predominantly worked in Telugu cinema. One of the greatest auteurs of Indian cinema, he received international recognition for his works, and is known for blending parallel cinema with mainstream cinema. He was honoured with the "Prize of the Public" at the "Besançon Film Festival of France" in 1981. In 1992, he received the Andhra Pradesh state Raghupathi Venkaiah Award, and the civilian honour Padma Shri for his contribution to the field of arts. In 2016, he was conferred with the Dadasaheb Phalke Award, the highest award in Indian cinema. He is popularly known as "Kalatapasvi."
