Eusebi wa Kaisarea (kwa Kigiriki: Εὐσέβιος τῆς Καισαρείας, Eusébios tés Kaisareías; 260/265 hivi – 339/340) alikuwa askofu wa mji huo wa Israeli tangu mwaka 314 na mwanahistoria maarufu kwa ujuzi wake mpana sana. Alikuwa mshauri wa kaisari Konstantino Mkuu akaandika habari za maisha yake. Aliandika pia kuhusu Biblia na ufafanuzi wake. Anaheshimiwa na Waorthodoksi wa Mashariki wa Misri na Ethiopia kama mtakatifu. Eusebius of Caesarea. Historia Ecclesiastica (Church History) first seven books ca. 300, eighth and ninth book ca. 313, tenth book ca. 315, epilogue ca. 325. Migne, J.P., ed. Eusebiou tou Pamphilou, episkopou tes en Palaistine Kaisareias ta euriskomena panta (in Greek). Patrologia Graeca 19–24. Paris, 1857. Online at Khazar Skeptik and Documenta Catholica Omnia. Accessed 4 November 2009. McGiffert, Arthur Cushman, trans. Church History. From Nicene and Post-Nicene Fathers, Second Series, Vol. 1. Edited by Philip Schaff and Henry Wace. Buffalo, NY: Christian Literature Publishing Co., 1890. Revised and edited for New Advent by Kevin Knight. Online at New Advent and CCEL. Accessed 28 September 2009.