Asafo (pia: Asaf, Asaph au Asa; alifariki Llanelwy, Welisi, 596 hivi) kuanzia mwaka 573 alikuwa askofu-abati wa jimbo ambalo baadaye lilipewa jina lake. Tangu kale anaheshimiwa na Wakatoliki na Waorthodoksi kama mtakatifu. Sikukuu yake huadhimishwa kila tarehe 1 Mei lakini pia 5 Mei na awali 11 Mei. Watakatifu wa Agano la Kale Orodha ya Watakatifu Wakristo Orodha ya Watakatifu wa Afrika Orodha ya Watakatifu Wafransisko "Early History", City of St. Asaph, Denbighshire. Jalada kutoka ya awali juu ya 2018-05-02. Iliwekwa mnamo 2020-04-27. Martyrologium Romanum Ὁ Ἅγιος Ἀσάφιος Ἐπίσκοπος Οὐαλίας. 1 Μαΐου. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ. National Calendar for Wales, accessed 6 February 2012 Attwater, Donald and Catherine Rachel John. The Penguin Dictionary of Saints. 3rd edition. New York: Penguin Books, 1993. ISBN|0-14-051312-4. Thornton, David E. (2004). Asaf (supp. fl. 6th cent.). Oxford Dictionary of National Biography. Oxford University Press.