1) Many saints are patrons of something, but there are more than 10,000 Roman Catholic saints and beatified people. Some well known are saint patrons of many things at the same time. But there are also some who, as far as I can see, are not saint patrons of anything. 2) "There are more than 10,000 Roman Catholic saints and beatified people. Among the Eastern Orthodox and Oriental Orthodox Communions, the numbers may be even higher, since there is no fixed process of "canonization" and each individual jurisdiction within the two Orthodox communions independently maintains parallel lists of saints that have only partial overlap. Note that the Anglican Communion has only ever canonized one saint--King Charles I of England (see Society of King Charles the Martyr). However, it recognizes pre-Reformation saints. Persons who have led lives of celebrated sanctity or missionary zeal are included in the Calendar of the Prayer Book "without thereby enrolling or commending such persons as saints of the Church". Similarly, any individuals commemorated in the Lutheran calendar of saints will be listed as well." Source and further information: http://en.wikipedia.org/wiki/List_of_saints Here some saints who do not seem to be saint patrons of anything: Ciarán of Clonmacnoise http://en.wikipedia.org/wiki/Ciar%C3%A1n_of_Clonmacnoise Columbanus http://en.wikipedia.org/wiki/Columbanus Cynllo http://en.wikipedia.org/wiki/Cynllo Dionysius the Areopagite http://en.wikipedia.org/wiki/Dionysius_the_Areopagite Tsaritsa Alexandra http://en.wikipedia.org/wiki/Alexandra_of_Hesse Andrei the Iconographer http://en.wikipedia.org/wiki/Andrei_Rublev Anthony Galvão http://en.wikipedia.org/wiki/Anthony_Galv%C3%A3o 3) Here some information about the patron saints: http://en.wikipedia.org/wiki/Patron_saints_of_occupations_and_activities http://en.wikipedia.org/wiki/Patron_saints_of_ailments%2C_illness_and_dangers http://en.wikipedia.org/wiki/Patron_saints_of_places http://en.wikipedia.org/wiki/Patronage_of_the_Blessed_Virgin_Mary http://www.catholic.org/saints/patron.php 4) Short Story: The Patron Saint of Nothing http://coloradosprings.yourhub.com/Central/Blogs/Arts-Entertainment/Literature/Fiction/Blog~256752.aspx