The commissioning of the Twelve Apostles during the ministry of Jesus is recorded in the Synoptic Gospels. After his resurrection, Jesus sent eleven of them (minus Judas Iscariot) by the Great Commission to spread his teachings to all nations.
The Apostles and where their relics are today by Bob Stanley
The Apostles and where their relics are today by Catholic-Link.org
The following is a list of the Twelve Apostles, named as they are most commonly referred to:
Peter (born Simon)
Andrew, brother of Peter
James, son of Zebedee
John, brother of James, son of Zebedee
James, son of Alphaeus
Judas Thaddeus, also known as Jude
Simon the Zealot, also known as Simon the Canaanite
Matthias is not an original apostle and is a replacement for Judas Iscariot after the betrayal of Jesus.
Paul is also not one of the original apostles, but is referred to and treated like one. He played a large role in composing the Bible and listing the lives of Jesus Christ and the Twelve Apostles.