Kanaala Nanjunda Tirumala Sastry (5 September 1945 – 13 September 2018) was an Indian film critic, screenwriter, director, littérateur, and producer, known for his works predominantly in Telugu cinema.

[2][3] He served as chairman of critics Jury at National Film Awards.

[4] Sastry was a jury member of Vladivostok International Film Festival 2003; five time jury member for Indian Panorama-International Film Festival of India; jury member the Nandi Awards, Government of Andhra Pradesh, and Fipresci jury member at Kinotavr film festival and Busan International Film Festival.

[4] Sastry's Thilaadanam received "New Currents Award" at the 7th Busan International Film Festival.

[5][2] He worked on many research projects with veteran director B. Narsing Rao.