Most scholars today say the Gospel of John is formally anonymous , but was likely written near the end of the first century by a close follower of Jesus’ traditions, often linked to “the disciple whom Jesus loved.” Christian tradition, going back to writers like Irenaeus in the late second century, identifies this figure with John the son of Zebedee, one of the Twelve apostles.

Traditional answer

From early in church history, Christians generally held that:

  • John the Apostle, son of Zebedee, wrote the Gospel of John.
  • Early church fathers (for example Irenaeus, c. 130–202 AD) explicitly say John, the beloved disciple, composed the Gospel at Ephesus.
  • Many modern conservative scholars and churches still simply answer: “John the Apostle wrote it.”

What the Gospel says about itself

Inside the text:

  • The book never names its author directly, but points to “the disciple whom Jesus loved” as the source of its testimony.
  • John 21:24 states, “This is the disciple who is testifying to these things and has written them,” which early readers took as an author’s self‑identification.

Modern scholarly view

In contemporary New Testament studies:

  • The majority view is that John was written around 90–100 AD, probably in or around Ephesus.
  • Many scholars think the Gospel went through stages: a primary author (the “beloved disciple”) plus later editing by one or more disciples or an early community.
  • Because of these layers and the lack of a name in the text, a large number of scholars no longer simply attribute it directly to the Apostle John, though some still do.

So who wrote it?

Putting it together, a careful answer is:

  • Formally: an anonymous early Christian author, closely connected to Jesus traditions and self-presented as “the disciple whom Jesus loved.”
  • Traditionally: John the Apostle, writing (possibly with the help of a scribe or later editor) near the end of his life.

On a spectrum, churches and more confessional scholars tend to give the simple traditional answer (“John the Apostle”), while critical scholars tend to emphasize anonymity, community involvement, or a “beloved disciple” whose exact identity cannot be proven.