Cultural and religious celebration on 17 March Saint Patrick's Day, or the Feast of Saint Patrick, is a religious and cultural holiday held on 17 March, the traditional death date of Saint Patrick, the foremost patron saint of Ireland. 1,545,232 views on March 17, 2017 — Wikipedia's most-read article that day. Also most read: John Laurens, Drunk History, Saint Patrick, Irish people. Wiki link