Eustoki wa Tours (Auvergne - Tours, 461) alikuwa askofu wa 5 wa Tours katika Ufaransa wa leo kuanzia mwaka 444 hadi kifo chake. Tangu kale anaheshimiwa na Wakatoliki na Waorthodoksi kama mtakatifu. Sikukuu yake huadhimishwa tarehe 19 Septemba. Watakatifu wa Agano la Kale Orodha ya Watakatifu Wakristo Orodha ya Watakatifu wa Afrika Orodha ya Watakatifu Wafransisko Alban Butler, Alban. "Saint Eustochius, Bishop of Tours". Lives of the Fathers, Martyrs, and Principal Saints, 1866. CatholicSaints.Info. 20 September 2013Kigezo:PD-notice Martyrologium Romanum T. S. M. Mommaerts and D. H. Kelley, The Anicii of Gaul and Rome, in Fifth-century Gaul: a Crisis of Identity?, ed. by John Drinkwater and Hugh Elton, (Cambridge University Press, Cambridge & New York, 1992), 120–121.