Dheewarayo (Sinhala: චෙරියෝ කැප්ටන්) is a 1964 Sri Lankan Sinhala drama film directed by M. Masthan and produced by K. Gunaratnam. It stars Gamini Fonseka and Sandhya Kumari in lead roles with Vijitha Mallika and Hugo Fernando in supportive roles. Music for the film is done by M. K. Rocksamy. The film became a huge blockbuster in that year and received critical acclaim at film festivals. The film was nominated for five Best Films at the 1965 Sarasaviya Awards and Gamini Fonseka, who played the lead role of Francis in the film won the award for the Best Actor.