Mahanayaka theros are high-ranking Buddhist monks who oversee and regulate the Buddhist clergy in Theravada Buddhist countries. The title Maha Nayaka translates to English as 'Great Leader' and it is considered to be a very important position held by a monk in a Theravada Buddhist country. It is usually bestowed upon the senior Buddhist monks who are appointed the chief prelates of monastic fraternities known as Nikayas.
Most Ven. Thibbatuwawe Sri Siddhartha Sumangala Maha Nayaka thera presenting an honorary title to a Buddhist monk