St. Andrew: buried in Cathedral of Saint Andrew, Patras, Greece
St. Bartholomew: buried in the Basilica of Benevento, Italy, or Basilica of St. Bartholomew on the Island, Rome, Italy
St. James the Great: buried in Santiago de Compostela Cathedral in Santiago de Compostela, Galicia, Spain
St. James, son of Alphaeus: buried in the Cathedral of St. James in Jerusalem
St. John: no relics
St. Jude Thaddeus: buried in St. Peter's Basilica under the St. Joseph altar with St. Simon the Zealot
St. Matthew: buried in the Salerno Cathedral, Italy
St. Matthias: buried in the St. Matthias' Abbey in Trier, Germany
St. Paul: relics located in the Basilica of Saint Paul Outside the Walls in Rome
St. Peter: buried in St. Peter's Basilica in Vatican City, Rome, Italy
St. Philip: buried in the Church of the Holy Apostles in Rome or possibly Hierapolis, modern Turkey
St. Simon the Zealot: buried in St. Peter's Basilica in Rome under the St. Joseph altar with St. Jude
St. Thomas: buried in the San Thome Basilica in Chennai, India