Eustathius

Eustathius or Eustathios (Greek Εὐστάθιος) is a Greek masculine given name, in English rendered Eustace. It may refer to:


 * Saint Eustace, martyr (d. 118)
 * Sint Eustatius, Dutch island in the Caribbean
 * Eustathius of Antioch, Patriarch of Antioch (c. 320 – c. 330)
 * Eustathius of Sebaste, Bishop of Sebastia in Armenia (fl. 350)
 * Eustathius of Cappadocia (4th century) Neoplatonist, orator, and diplomat
 * Eustathius (consul), Roman consul in 421
 * Eustathius of Mtskheta (died 551), Georgian saint
 * Eustathius of Epiphania, sixth-century Byzantine historian
 * Eustathios (governor of the Cibyrrhaeot Theme), Byzantine governor (fl. ca. 910)
 * Eustathios Maleinos (fl. 960s–980s), Byzantine general and magnate
 * Eustathios Rhomaios (c. 970–1030), Byzantine jurist
 * Eustathios Daphnomeles (fl. early 11th century), Byzantine general
 * Patriarch Eustathius of Constantinople from 1019 to 1025
 * Eustathios Palatinos (fl. mid-11th century), Byzantine Catepan of Italy
 * Eustathios Kymineianos (1087–1107), Byzantine eunuch
 * Eustathios Makrembolites (fl. late 12th century), Byzantine novelist
 * Eustathius of Thessalonica (fl. late 12th century), bishop famous for his commentaries on Homer
 * Ewostatewos, Ethiopian saint (c. 1273–c. 1352)
 * Jevstatije I (fl. late 13th century), Serbian saint
 * Jevstatije II (fl. c. 1300), Serbian saint