This depends as you could be talking about either St. Peter or St. Paul, both of whom are believed to be buried in Rome. St. Peter, by tradition, is buried under the main altar of St. Peter's Basilica in Rome, where the Holy Pontiff celebrates Solemn Mass, and St. Paul is said, as of only about a decade ago, to be buried under the main altar of St. Paul Outside the Walls, also in Rome.
Sidenote- some may disagree that Rome, which I speak of as including Vatican City, is not actually Vatican City. This is true.
The patron saint of the Abbey of Saint Peter and Saint Paul, Saint Benedict, is buried in the Abbey of Monte Cassino in Italy.
Saint Benedict is buried in the Abbey of Monte Cassino in Italy. The abbey is located on a hilltop near the town of Cassino, about 130 kilometers southeast of Rome. Saint Benedict is the founder of the Benedictine Order and his tomb is considered a place of pilgrimage for Catholics.
Saint Peter is buried under the main altar of St. Peter's Basilica in the Vatican. Extensive studies by archeologists over many years have found what appear to be the remains of the saint there. A few months back the bones were presented to Pope Francis.
St. Genevieve's remains are said to be buried at the church of Saint-Γtienne-du-Mont in Paris, France. She is considered the patron saint of Paris due to her intercession during times of crisis in the city.
Natasha Richardson was buried in Millbrook, New York, at the St. Peter's Episcopal Cemetery.
Saint Aidan is buried on the Holy Island of Lindisfarne, off the northeast coast of England. His tomb can be found in the ruins of the medieval Priory on the island.
Peter is the patron saint of many things and places but not the patron saint of any country.
Peter Chanel is the patron saint of Oceania only.
St. Peter Damian is not a patron saint.
Yes, Saint Peter is one of the patron saints of fishermen. He was a fisherman himself.
Saint Peter Claver is the patron of the parish that carries his name. Surprise!
St. Joseph is the Patron Saint of the Universal Church.
Saint Gregory the Great and Saint Peter are the patron saints of the popes.
No, he is buried in Westminster Abbey.
St. Peter Canisius is the patron saint of the Catholic press, of Germany and of writers of catechisms.
St. Peter the Apostle.
The patron saint of anger management is St. Peter.
Both Saint Joseph and Saint Peter are the patron saints of the Universal Church.