Nikon of Jerusalem was a 15th-century Serbian monk and writer, possibly of Greek origin. He is primarily known for his extensive correspondence with Jelena Lazarević, a relationship that represents a high point in medieval Serbian epistolography. After receiving the great schema tonsure in 1442, he adopted the religious name Nikandar. His literary contributions include spiritual treatises, travelogues, and hagiographies, which blend theological reflection with poetic and philosophical elements.