Olga wa Kiev (kwa Kirusi: Ольга; Pskov, Urusi, 890-925 hivi – Kiev, Ukraina, 969) alitawala utemi wa Kiev kwa niaba ya mwanae kuanzia mwaka 945 hadi 960. Baada ya kupokea ubatizo alijitahidi sana kueneza Ukristo nchini. Kazi hiyo ilikamilishwa na mjukuu wake, Vladimir Mkuu. Tangu kale anaheshimiwa na Waorthodoksi na Wakatoliki kama mtakatifu. Sikukuu yake huadhimishwa tarehe 11 Julai. Watakatifu wa Agano la Kale Orodha ya Watakatifu Wakristo Orodha ya Watakatifu wa Afrika Orodha ya Watakatifu Wafransisko Karpov, A.Y. (2009). Princess Olga (in Russian). Moscow: Molodaya Gvardiya, 31. ISBN 978-5-235-03213-2.  Michael S. Flier, "St Olga," in The Oxford Dictionary of the Middle Ages, ed. Robert E. Bjork (Oxford: Oxford University Press, 2010). "Princess Olga of Kiev," Russiapedia, https://russiapedia.rt.com/prominent-russians/history-and-mythology/princess-olga-of-kiev/. Ciaran Conliffe, "Saint Olga, Queen of Kiev," HeadStuff, May 10, 2016, , https://www.headstuff.org/culture/history/saint-olga-queen-of-kiev/. Святая княгиня Ольга (ru-RU). Martyrologium Romanum Wikimedia Commons ina media kuhusu: Olga wa Kiev Olga of Kiev - OrthodoxWiki