Menzoberranzan, the "City of Spiders", is a fictional city-state in the world of the Forgotten Realms, a Dungeons & Dragons campaign setting. The city is located in the Upper Northdark, about two miles below the Surbrin Vale, between the Moonwood and the Frost Hills. It is famed as the birthplace of Drizzt Do'Urden, the protagonist of several series of best-selling novels by noted fantasy author R. A. Salvatore. Menzoberranzan has been developed into a video game and a tabletop RPG setting.

Forgotten Realms is a campaign setting for the Dungeons & Dragons (D&D) fantasy role-playing game. Commonly referred to by players and game designers as "The Realms", it was created by game designer Ed Greenwood around 1967 as a setting for his childhood stories. Several years later, it was published for the D&D game as a series of magazine articles, and the first Realms game products were released in 1987. Role-playing game products have been produced for the setting ever since, in addition to novels, role-playing video game adaptations, comic books, and the film Dungeons & Dragons: Honor Among Thieves.