Patron
–noun
1. a person who is a customer, client, or paying guest, esp. a regular one, of a store, hotel, or the like.
2. a person who supports with money, gifts, efforts, or endorsement an artist, writer, museum, cause, charity, institution, special event, or the like: a patron of the arts; patrons of the annual Democratic dance.
3. a person whose support or protection is solicited or acknowledged by the dedication of a book or other work.
4. patron saint.
5. Roman History. the protector of a dependent or client, often the former master of a freedman still retaining certain rights over him.
6. Ecclesiastical. a person who has the right of presenting a member of the clergy to a benefice.
From Dictionary.com
However, in a Pagan sense it is mostly used to indicate ones patron deity, ie the deity the individual has chosen to honour above all others

for eg "Her patron is Thor"