In the Star Trek science-fiction franchise, the Maquis are a 24th-century paramilitary organization-terrorist group. The group is introduced in the two-part episode "The Maquis" of the television series Star Trek: Deep Space Nine, building on a plot foundation introduced in the episode "Journey's End" of Star Trek: The Next Generation, and appear in later episodes of those two series as well as Star Trek: Voyager. The Maquis story debuted when three Star Trek television shows running from 1987 to 2001 took place in the same fictional science-fiction universe at the same time in the future. As a result, the Maquis story was told across several episodes in all three shows. The Maquis are especially prominent in Star Trek: Voyager, whose premise is that a Starfleet crew and a Maquis crew are stranded together on the opposite side of the Galaxy.

The Maquis were rural guerrilla bands of French and Belgian Resistance fighters, called maquisards, during the German military administration in occupied France during World War II. Initially, they were composed of young, mostly working-class, men who had escaped into the mountains and woods to avoid conscription into Vichy France's Service du travail obligatoire which provided forced labor for Germany. To avoid capture and deportation to Germany, they became increasingly organized into active resistance groups.