Is there a patron saint for homosexuals?
So far as I know, there is not yet a saint or blessed who has struggled with homosexuality. There are saints well-known for their personal chastity, however. The saint most often invoked as a patron of men's chastity is St. Joseph, husband of the Virgin Mary, and sometimes invoked under the title of "St. Joseph, most chaste spouse [of the Blessed Virgin]." You might also try St. Augustine of Hippo, who once led a promiscuous life, and is famous for his pre-conversion prayer, "Lord, grant me chastity, but not yet." For women, two possibilities could be the Blessed Virgin Mary and St. Maria Goretti, who fought to the death rather than allow an attack on her chastity.