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Konda Subbarama Das (5 January 1936 – 8 June 2012), popularly known as K. S. R. Das (also spelled as K. S. R. Doss), was an Indian film director and editor known for his work in Telugu and Kannada cinema. Active primarily in the 1970s and 1980s, Das was known for his action films and made significant contributions to South Indian cinema.

Throughout his career, K. S. R. Das directed nearly 100 films across multiple Indian languages, with the majority in Telugu, and additional projects in Kannada, Hindi, Tamil, and Malayalam. He was a pioneer of full-length action films and introduced cowboy-themed films to Indian cinema. Notable films such as Rowdy Rani (1970) and Mosagallaku Mosagadu (1971) set new trends in the action genre. Although primarily recognized for his action films, Das also directed family dramas, showcasing his versatility as a filmmaker.

Das collaborated with several South Indian stars, including Krishna, with whom he directed over 30 films, as well as Chiranjeevi, Rajinikanth, Vishnuvardhan, and N. T. Rama Rao. His work was both commercially successful and influential in shaping the action genre in Indian cinema. Das received several awards throughout his career, including the prestigious Puttanna Kanagal Award.