The Ferengi (pronounced [fɛˈrɛŋɡi]) are a fictional extraterrestrial race from the Star Trek universe. They first appeared in "The Last Outpost", the fourth episode of Star Trek: The Next Generation in 1987, during which they made first contact with the United Federation of Planets in 2364 on the planet Delphi Ardu, though they had been mentioned in the series' pilot, "Encounter at Farpoint". They and their culture are characterized by a mercantile obsession with profit and trade and their constant efforts to swindle people into bad deals.
They are also known for their business acumen and for exploiting females. Notable Ferengi characters include Quark, Rom, Nog, Ishka, Zek, and Brunt. Their home planet, Ferenginar, is the center of the Ferengi Alliance and is governed by the Grand Nagus and a Commerce Authority made primarily of the Council of Economic Advisors (formerly Board of Liquidators).
Like most of their culture, their religion is also based on the principles of capitalism: they offer prayers and monetary offerings to a "Blessed Exchequer" in hopes of entering the "Divine Treasury" upon death, and fear an afterlife spent in the "Vault of Eternal Destitution". The Ferengi were originally meant to replace the Klingons on Star Trek: The Next Generation as the Federation's arch-rival, but viewers could not see the ridiculous creatures as posing any kind of consistent threat. Thus, Paramount scrapped them as true threats, and they were usually shown as being somewhat of a one-dimensional nuisance, and plots involving them were usually comedic ones.
Paramount instead revived the Romulans at the end of season one and introduced the Borg in season two to serve as the Federation's main arch-rivals.