According to
this there's three, though they're all a bit promiscuous with their patronage.
St Peter the Apostle very promiscious. Verging on being a slag!
Patron saint of........................
Affi, Italy
against feet problems
against fever
against foot problems
against frenzy
bakers
Bath Abbey
Belvedere Ostrense, Italy
Berchtesgaden Abbey
Berlin, Germany, archdiocse of
Birzebbuga, Malta
Bremen, Germany
bridge builders
butchers
Calbayog, Philippines, diocese of
Capolona, Italy
Capriata d’Orba, Italy
Castelletto d’Orba, Piedmont, Italy
Chartres, France
Chatillon, Aosta, Italy
clock makers
Cluny, France
cobblers
Cologne, Germany
Corbie Abbey
Davao, Philippines, archdiocese of
Exeter College, Oxford, England
Dunajská Streda, Slovakia
fishermen
Gabiano, Italy
harvesters
Jackson, Mississippi, diocese of
Köpenick, Germany
Lanuvio, Italy
Las Vegas, Nevada, diocese of
Lessines, Belgium
Leuven, Belgium
locksmiths
London, England
longevity
Maralal, Kenya, diocese of
Marquette, Michigan, diocese of
masons
Mdina, Malta
Moissac, France
Nadur, Gozo, Malta
Naumburg, Germany
net makers
Obermarsberg, Germany
papacy
Philadelphia, Pennsylvania, archdiocese of
popes
Poznan, Poland
Providence, Rhode Island, diocese of
Regensburg, Germany
Rome, Italy
Saint Petersburg, Russia
Scranton, Pennsylvania, diocese of
ship builders
shipwrights
shoemakers
Sint Pieters Rode, Belgium
stone masons
Toa Baja, Puerto Rico
Umbria, Italy
Universal Church
watch makers
Worms, Germany