Thotagamuwe Sri Rahula Thera was a Buddhist monk and an eminent scholar, who lived in the 15th century in Sri Lanka. He was a polyglot who was given the title "Shad Bhasha Parameshwara" due to his mastery in six oriental languages which prevailed in the Indian subcontinent. Sangharaja Thotagamuwe Sri Rahula Thera was also a distinguished author, veteran astrologer and a proficient ayurvedic physician.

The Kingdom of Kotte, named after its capital, Kotte, was a Sinhalese kingdom that flourished in Sri Lanka during the 15th century.