Osey Ramulamma is a 1997 Indian Telugu-language action drama film written and directed by Dasari Narayana Rao. The film is based on a woman's rebellion in Telangana and stars Vijayashanti as the title character. Rao and Rami Reddy also star while Krishna makes a cameo appearance. The film premiered at the 1998 International Film Festival of India in the mainstream section.

Dasari Narayana Rao was an Indian film director, producer, screenwriter, actor, lyricist, and politician known for his works predominantly in Telugu cinema, in addition to Hindi cinema. He has directed more than 150 feature films in a variety of genres. He holds the Limca World Record for directing the most number of films in the world. For some reason he is known by the moniker Darsaka Ratna. His works emphasize social injustice, corruption and gender discrimination. Narayana Rao has received two National Film Awards, nine state Nandi Awards including the Raghupathi Venkaiah Award, and four Filmfare Awards South including the Lifetime Achievement. During his career he had also acted in Telugu, Tamil, and Kannada films.