Bhootayyana Maga Ayyu (transl. Bhootayya's son Ayyu) is 1974 Indian Kannada-language drama film directed by Siddalingaiah, who co-wrote the screenplay with Gorur Ramaswamy Iyengar, based on Iyengar's short story of the same name from his novel, Vayyari. The film stars Vishnuvardhan and Lokesh; with M. P. Shankar, Jayamala, Rushyendramani and Balakrishna all acting in supporting roles. The film revolves around the enmity between two villagers, Ayyu and Gulla and how they mend their relationship.

Bhootayyana Maga Ayyu was a 12 page short story in a compilation of stories by Gorou Ramaswamy. Ramaswamy had initially declined to give the rights to the story but eventually agreed. Though Siddalingaiah added new plot details and characters to increase the running time of the film, it retains the core premise of the original short story. D. V. Rajaram acted as the film's cinematographer. The film was shot extensively at Kalasapur, Dharmasthala, and Talakadu. The film was edited by P. Bhaktavatsalam and the music was composed by G. K. Venkatesh, with lyrics written by Chi. Udaya Shankar and R. N. Jayagopal.

The film was released on 2 February 1974. The film ran for over 100 days in theatres, and later won the Karnataka State Film Award for First Best Film at the 7th Karnataka State Film Awards. The film also won three other Karnataka State Awards: Best Actor for Lokesh, Best Actress for Bhavani and Best Supporting Actress for Rushyendramani. The film was remade in Tamil as Ellorum Nallavare (1975), in Hindi as Ek Gaon Ki Kahani (1975) and in Telugu as Andharoo Manchivaare (1976).