Euthymius or Euthymios () may refer to:
- Saint Euthymius of Perugia, father of Saint Crescentius of Rome
- Saint Euthymius the Great (377âÂÂ473), abbot in Palestine
- Saint Euthymius of Sardis (died 831), Metropolitan of Sardis, Confessor
- Saint Euthymius the Younger (died 898), monk and hermit who lived on Mount Athos
- Saint Euthymius the Athonite (), Georgian monk, philosopher, and scholar
- Saint Euthymius of Tarnovo (1325âÂÂ1402), Patriarch of Bulgaria 1375âÂÂ1393
- Saint Euthymius II of Novgorod (died 1458), Archbishop of Novgorod
- Saint Euthymius of DeÃÂani (16th century), Serbian monk and martyr
- Saint Euthymios Agritellis (1876âÂÂ1921), Greek Orthodox Bishop of Zela, in Amasya, Western Pontus, New Ethno-Hieromartyr
Christian Patriarchs:
Other people: