Time War can refer to: Temporal war, a fictional conflict that takes place in multiple time periods, instigated by factions in the future who then travel back and alter history to their own ends Time War (Doctor Who), an event in the fictional Doctor Who universe Time War, a module in the Nintendo game Meteos Time War (novel), a 1974 science fiction novel by Lin Carter Time War (board game), a time travel wargame published in 1979 by Yaquinto
See also Temporal Cold War, in the Star Trek universe