Chrysanthus Notaras (Greek: Χρύσανθος Νοταράς; 1655/1660 – February 7, 1731), also known as Chrysanthus of Jerusalem, was Patriarch of Jerusalem (February 19, 1707 – February 7, 1731) and a scholar in Eastern Orthodoxy. He was a mathematician, astronomer, geographer, and author. He is known for creating modern maps in the Greek language. He was one of Giovanni Domenico Cassini's students. He also built astronomical equipment.