John II of Naples

{{Use dmy dates|date=April 2022}}

{{Multiple issues|

{{Unreferenced|date=December 2009}}

{{Expand French|date=March 2025}}

{{Expand Italian |date=March 2025}}

}}

John II (died 919) was the duke of Naples from 915 to his death. He succeeded his father Gregory IV on the latter's death late in 915.

He had accompanied his father to the Battle of the Garigliano under Nicholas Picingli, where the Christian coalition defeated the Moslems of the fortress on the Garigliano.