John is a common English name and surname: John (given name) John (surname) John may also refer to: New Testament. Works. Gospel of John, a title often shortened to John. First Epistle of John, often shortened to 1 John. Second Epistle of John, often shortened to 2 John. Third Epistle of John, often shortened to 3 John. People. John the Baptist (died c. AD 30), regarded as a prophet and the forerunner of Jesus Christ. John the Apostle (lived c. AD 30), one of the twelve apostles of Jesus. John the Evangelist, assigned author of the Fourth Gospel, once identified with the Apostle.
https://en.wikipedia.org/wiki/John