Yohane Kasiano (Scythia Minor, leo Dobruja, Bulgaria, 360 hivi^[1] - Marseille, Ufaransa 435 hivi) alikuwa mmonaki padri na mwanateolojia aliyeathiri sana Ukristo, hasa kwa njia ya vitabu vyake "Miundo ya Kimonaki" "Maongezi ya Mababu", anapoeleza aliyofundishwa na wamonaki wa nchi mbalimbali kuhusu maisha ya kiroho^[2].

Pia alianzisha monasteri mbili, ya kiume na ya kike.

Anaheshimiwa kama mtakatifu na Kanisa Katoliki, Waorthodoksi na Waanglikana.

Sikukuu yake inaadhimishwa tarehe 23 Julai^[3] au tarehe 29 Februari (tarehe 28 katika miaka mifupi).

• Watakatifu wa Agano la Kale
• Orodha ya Watakatifu Wakristo
• Orodha ya Watakatifu wa Afrika
• Orodha ya Watakatifu Wafransisko
• Mababu wa Kanisa

• Chadwick, Owen. John Cassian, Cambridge University Press, 1950.
• Stewart, Columba. Cassian the Monk, New York: Oxford University Press, 1998.
• Rousseau, Philip. "Cassian." In Simon Hornblower and Antony Spawforth, eds. The Oxford Classical Dictionary. Oxford: Oxford UP, 2003. 298.
• Harper, James. "John Cassian and Sulpicius Severus," Church History vol. 34 (1965):371-380.
• Brown, Peter. The Rise of Western Christendom : Triumph and Diversity, A.D. 200-1000. Oxford: Blackwell Publishing, 2003. pp. 111
• Encyclopedia of Religion. ed. Lindsay Jones. Vol. 3. 2nd ed. Detroit: Macmillan Reference USA, 2005. pp. 1447–1448.
• New Catholic Encyclopedia. vol. 3. 2nd ed. Detroit:Gale, 2003. pp. 205–207

Wikimedia Commons ina media kuhusu:

Yohane Kasiano

• Catholic Encyclopedia: St. John Cassian
• Text of the Institutes
• Latin edition of the De Coenobiorum Institutis
• Text of the Conferences
• Text of On the Incarnation of the Lord (Against Nestorius)
• Opera Omnia by Migne Patrologia Latina
• Venerable John Cassian the Roman Orthodox icon and synaxarion
• Catholic Online-Saints & Angels: St. John Cassian
• The Ecole Initiative: St. John Cassian Ilihifadhiwa 9 Aprili 2011 kwenye Wayback Machine.
• Patron Saints Index: St. John Cassian Ilihifadhiwa 11 Februari 2011 kwenye Wayback Machine.

Makala hii bado ni mbegu. Je, unajua kitu kuhusu Mkristo huyu, kama wasifu wake, habari za maisha au kazi yake? Je, unaona habari katika Wikipedia ya Kiingereza au lugha nyingine zinazofaa kutafsiriwa? Basi unaweza kuisaidia Wikipedia kwa kuihariri na kuiongezea habari.