Antimatter may refer to:

• Antimatter, matter composed of antiparticles
• Antimatter (album), a Cubanate album
• Antimatter (band), the Gothic/Ambient/Trip hop band
• A section of the defunct science magazine, Omni. The section was devoted to bizarre theories of science, UFO's etc.
• Antimatter (Star Trek novel), a Star Trek: Deep Space Nine novel written by John Vornholt

This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.