Giorgi Merchule (Georgian: გიორგი მერჩულე) was a 10th-century Georgian monk, calligrapher and writer who authored "The Vita of Grigol Khandzteli", a hagiographic novel dealing with the life of the prominent Georgian churchman St. Grigol Khandzteli (Gregory of Khandzta) (759-861). Merchule might also have been engaged in hymnography as indicated by a postscript in the manuscript of collection by the 10th-century hymnist Michel Modrekili.