Yevon, also known as the Yevon Church, the Church of Yevon and Yevonites, is the governmental and religious cult in Spira and an antagonistic faction in Final Fantasy X. This powerful, religious organization was named after Yu Yevon, the main villain of the game and true power behind Sin. The highest leader of Yevon has the title of Grand Maester while the 3 other leaders are known as Maesters.