As per the Patron Saint Index, Paul IS a patron saint of evangelists. This is probably due to the fact that he wrote a large portion of the New Testament and would be called an evangelist himself.
Paul is a saint but not a patron saint.
There is no patron saint of truth.
Paul of the Cross is the patron saint of Ovada, Italy, only.
Both Saint Joseph and Saint Peter are the patron saints of the Universal Church.
There is no Saint Paul of Nagasaki. There is, however, a church in Nagasaki called St. Paul.
He is the patron saint of World Youth Days.
Saint Paul is the patron saint of Konya, a city in Turkey.
There is no patron saint of hat wearers, only patron saints of hat makers:BarbaraClementJames the LesserMichael the ArchangelPhilip the ApostleSeverus of Avranches
There is a parish named Saint Paul in nearly every Catholic diocese in the world.
Pope John Paul II is not yet a canonized saint nor is he a patron saint.
I know of no patron saint of the gentiles. However, St. Paul is called the Apostle of the Gentiles.
There is no patron saint of hospitals but there are patrons of hospital workers:Camillus of LellisJohn of GodJude ThaddeusVincent de Paul