As a nickname, Jez most commonly is a diminutive form of the given name Jeremy (roughly homophonous to "Jers" in non-rhotic accents), Jezebel, Jeremiah, Jerahmeel, and Jezreel.
The Jez nickname can often be extended to form other nicknames, still based on the name Jezreel, such as Jezza or Jezzie. It may refer to: