Diamondback may refer to:

Animals Eastern diamondback rattlesnake, Crotalus adamanteus Western diamondback rattlesnake, Crotalus atrox Diamondback moth, a European moth that has spread to North America Diamondback terrapin, a turtle, the state reptile of Maryland Diamondback water snake, a common species of water snake in North America

Arts and media Diamondback (Willis Stryker), a supervillain and arch-enemy of Luke Cage Diamondback (Rachel Leighton), a supervillain turned superhero and supporting character of Captain America Diamondback (game), a fictional card game from the Cerebus comics The Diamondback, the official student newspaper of the University of Maryland, College Park

Organizations Arizona Diamondbacks, a Major League Baseball team since 1998 Chandler Diamondbacks, an Arizona Fall League baseball team that operated during 1992–1994 Diamondback Energy, a company engaged in hydrocarbon exploration headquartered in Midland, Texas Diamondback Bicycles, American bicycle maker VFA-102 Diamondbacks, a U.S. Navy strike fighter squadron

Technology Diamondback (missile), a U.S. Navy missile concept of the 1950s Colt Diamondback, a double-action revolver Diamondback, a computer mouse created by Razer USA Ltd

Other uses Diamond Back (Frontier City), a roller coaster at Frontier City in Oklahoma City, Oklahoma Diamondback (Kings Island), a roller coaster at Kings Island in Mason, Ohio

See also "Diamond in the Back", a 2004 single by rapper Ludacris