Diomede wa Nisea (Tarso, Kilikia, leo nchini Uturuki, karne ya 3 - Nisea, Bitinia, leo nchini Uturuki, 303 hivi) alikuwa mganga Mkristo ambaye kwa imani yake hiyo aliuawa wakati wa dhuluma ya kaisari Diokletian. Tangu kale anaheshimiwa na Kanisa Katoliki na Kanisa la Kiorthodoksi kama mtakatifu mfiadini. Sikukuu yake huadhimishwa tarehe 9 Juni. Watakatifu wa Agano la Kale Orodha ya Watakatifu Wakristo Orodha ya Watakatifu wa Afrika Orodha ya Watakatifu Wafransisko http://www.santiebeati.it/dettaglio/56560 Orthodox Saints and Feasts: The Holy Unmercenaries Martyrologium Romanum Saint of the Day, August 16: Diomedes of Tarsus Archived 25 Februari 2020 at the Wayback Machine. at SaintPatrickDC.org Diomedes the Physician & Martyr of Tarsus St. Diomedes, Holy Doctor/Martyr, fresco from 19th century. The King Milutin's church of the Hilandar Monastery on Mt. Athos Troparia and Kontakia: August 16, Diomedes