Giyorgis of Segla (c. 1365 – 1 July 1425), also known as Giyorgis of Gesecha or Abba Giyorgis, was an Ethiopian Oriental Orthodox monk, saint, and author of religious books. Giyorgis' work has had great influence on Ethiopian monastic calendars, hymns and Ge'ez literature. He is considered one of the most important Ge'ez writers in fifteenth-century Ethiopia. Giyorgis was involved in a controversy concerning Sabbath in Christianity and consequentially fell into disfavor of emperor Dawit I. He managed to continue his work later in life, under the reigns of Tewodros I and Yeshaq I.