What is Saint Austin the patron saint of?

Answer 1

The name Austin usually refers to Saint Augustine of Hippo who is the patron saint of:
against sore eyes
against vermin
brewers
printers
theologians
Bridgeport, Connecticut, diocese of
Ida, Philippines, diocese of
Kalamazoo, Michigan, diocese of
Laredo, Texas, diocese of
Saint Augustine, Florida, diocese of
Superior, Wisconsin, diocese of
Tucson, Arizona, diocese of
Cagayan de Oro, Philippines
Carpineto Romano, Italy
Isleta Indian Pueblo
Ponte Nizza, Italy
Saint Augustine, Florida
San Austin, Ibiza, Spain
Valletta, Malta

Answer 2

Saint Allan is not a patron saint.