Eufemia wa Kalsedonia (alifariki Kalsedonia, leo nchini Uturuki, 303) alikuwa bikira aliyefia dini ya Ukristo. Kwa sababu hiyo tangu kale anaheshimiwa na Wakatoliki, Waorthodoksi, Waorthodoksi wa Mashariki kama mtakatifu mfiadini. Sikukuu yake huadhimishwa tarehe 16 Septemba. Watakatifu wa Agano la Kale Orodha ya Watakatifu Wakristo Orodha ya Watakatifu wa Afrika Orodha ya Watakatifu Wafransisko Castelli, Elizabeth A. (July 15, 2000). "Chapter 39: Asterius of Amasea,Ekphrasis on the Holy Martyr Euphemia", Religions of Late Antiquity in Practice. Princeton University Press, 464. ISBN 978-0691057507.  "St. Euphemia the All-Praised", Antiochian Orthodox Christian Archdiocese Martyrologium Romanum (Libreria Editrice Vaticana, 2001 ISBN 88-209-7210-7) Wikimedia Commons ina media kuhusu: Eufemia wa Kalsedonia Greatmartyr Euphemia the All-praised Orthodox icon and synaxarion (September 16 feast) Miracle of the Greatmartyr Euphemia the All-praised at Chalcedon (July 11 feast) Saint Euphemia at the Christian Iconography web site Here Followeth the Life of S. Eufemia in Caxton's translation of the Golden Legend