Chittor V. Nagaiah
- Birthday: 28. March 1904
- Birthplace: Chittoor district, Andhra Pradesh
- Awards: National Film Award for Best Feature Film in Telugu (director) – 1964 for Ramadasu, Abinava Thyagaraju by Thiruvankur Maharaja., Best Actor Award by the Andhra Film Journalists Association, Padmashri, Government of India in 1965
Chittor V. Nagaiah (born Vuppaladadiyam Nagayya, Telugu: వుప్పలదడియం నాగయ్య) was a multilingual Indian film actor, thespian, composer, director, producer, writer and playback singer from Andhra Pradesh, India. Indian film journalist and the editor of Film India, Baburao Patel, described Nagiah as The Paul Muni of India. In his honor, the Mahati Chittor Nagaiah Kalakshetram of arts was established in the Chittoor district of Andhra Pradesh.
Nagaiah is starred in about 200 Telugu films, and 160 films in Tamil, Kannada, Malayalam and Hindi. Widely recognized as one of the finest Indian method actors, his acting quality, was usually playing intense characters, often immersing himself in study of the real character's traits and mannerisms. He was the first south Indian film star to be honoured with the Padma Shri by the Government of India in 1965.