Military
* Fragging, deliberate killing of an unpopular member of one's own fighting unit, occasionally using a fragmentation grenade * Fragmentation grenade, or 'frag', in military, a type of hand grenade ** Any similar weapons based on the fragmentation effect * Air Tasking Order, historically 'fragmentary order', now informally 'frag'. 'As fragged', meaning as planned, is a derivativeArts, entertainment, and media
* Frag, a DC Comics character, and member of The Blasters * ''Frag'' (game), a board game published by Steve Jackson Games, inspired by fragging in video games *Science and technology
* Fragmentation (computing), or "fragging", a phenomenon during which storage space is used inefficiently in computer storage *