Cosmas Mtakatifu (aliuawa kati ya 287 na 303) alikuwa daktari katika maeneo ya Uturuki kusini wa leo. Pia alikuwa kaka ya Damian Mtakatifu. Inasemekana walitokea Uarabuni. Hali ya maisha na kifodini chake haijulikani kwa uhakika. Sikukuu yake ni tarehe 26 Septemba. Takriban mwaka 530, Papa Felix IV aliwatolea Cosmas na Damian Watakatifu basilika maarufu katika mji wa Roma. Watakatifu wa Agano la Kale Orodha ya Watakatifu Wakristo Orodha ya Watakatifu wa Afrika Orodha ya Watakatifu Wafransisko Martyrologium Romanum Acta sanctorum, 27 Sept, p 432 para 187 Wikimedia Commons ina media kuhusu: Cosmas Mtakatifu Catholic Encyclopedia:Sts. Cosmas and Damia Leslie G. Matthews, "SS. Cosmas and Damian—Patron Saints of Medicine and Pharmacy: Their Cult in England" in Medical History: notes on the few English churches dedicated to these saints Wonderworkers and Unmercenaries Cosmas and Damian of Asia Minor (1 Novemba) Eastern Orthodox icon and synaxarion Holy Wonderworking Unmercenary Physicians Cosmas and Damian at Rome (1 Julai) Martyrs and Unmercenaries Cosmas Damian in Cilicia (17 Oktoba) Synaxis of the Holy Unmercenaries Icon Representations of Saints Cosmas and Damian Saints Cosmas and Damian page Archived 16 Novemba 2011 at the Wayback Machine. at Christian Iconography "Here Follow the Lives of Saints Cosmo and Damian" Archived 19 Januari 2014 at the Wayback Machine. from the Caxton translation