The 2002 Vengeance was the second annual Vengeance professional wrestling pay-per-view (PPV) event produced by World Wrestling Entertainment (WWE). It was held for wrestlers from the promotion's Raw and SmackDown! brand divisions. The event took place on July 21, 2002, at the Joe Louis Arena in Detroit, Michigan. It was the first Vengeance event held under the WWE name, after the company had been renamed from World Wrestling Federation to WWE in May that year, as well as the first Vengeance held under the first brand extension.

The main event from SmackDown! saw The Rock win the WWE Undisputed Championship in a Triple Threat match also involving Kurt Angle and the defending champion The Undertaker. The main event from Raw was between the champion Rob Van Dam and challenger Brock Lesnar for the WWE Intercontinental Championship, in which Van Dam retained his championship by disqualification. The undercard featured The Un-Americans (Lance Storm and Christian) versus Hollywood Hulk Hogan and Edge for the WWE Tag Team Championship, Booker T versus Big Show in a No Disqualification match and John Cena versus Chris Jericho in Cena's first PPV match.