Winifrida (pia: Gwenffrewi, Winefride, Winifred, Wenefreda, Guineura; Flintshire, 600 - Conwy, 660) alikuwa bikira Mkristo wa Wales aliyeishi kama mmonaki. Tangu kale anaheshimiwa na Wakatoliki, Waorthodoksi na Waanglikana kama mtakatifu, pengine mfiadini. Sikukuu yake huadhimishwa tarehe 2 Novemba. Watakatifu wa Agano la Kale Orodha ya Watakatifu Wakristo Orodha ya Watakatifu wa Afrika Orodha ya Watakatifu Wafransisko http://www.santiebeati.it/dettaglio/76025 Martyrologium Romanum (1853) Lives of the Cambro-British Saints. William Rees, 515–529.  Seguin, Colleen M. (Summer 2003): "Cures and Controversy in Early Modern Wales: The Struggle to Control St. Winifred's Well", North American Journal of Welsh Studies, Vol. 3, 2 Holywell website Holywell Church website Archived 30 Desemba 2018 at the Wayback Machine. BBC Wales: Holywell