Warana Raja Maha Vihara (Sinhalaː වාරණ රජ මහා විහාරය) is an ancient Buddhist temple situated in Thihariya, Gampaha District, Sri Lanka. The temple is located approximately 5 km (3.1 mi) away from the Colombo - Kandy highway. Currently this temple has been recognized as an archaeological protected site in Gampaha District by Archaeological department.