Eye of the Beholder is a role-playing video game for personal computers and video game consoles developed by Westwood Associates. It was published by Strategic Simulations, Inc. in 1991, for the MS-DOS operating system and later ported to the Amiga, the Sega CD and the SNES. The Sega CD version features a soundtrack composed by Yuzo Koshiro and Motohiro Kawashima. A port to the Atari Lynx handheld was developed by NuFX in 1993, but was not released. In 2002, an adaptation of the same name was developed by Pronto Games for the Game Boy Advance.

The game has two sequels, Eye of the Beholder II: The Legend of Darkmoon, also released in 1991, and Eye of the Beholder III: Assault on Myth Drannor, released in 1993. The third game, however, was not developed by Westwood, which had been acquired by Virgin Interactive in 1992 and created the Lands of Lore series instead.

Eye of the Beholder features a first-person perspective in a three-dimensional dungeon, very similar to the earlier Dungeon Master. The player controls four characters, initially, using a point-and-click interface to fight monsters. This can be increased to a maximum of six characters, by resurrecting one or more skeletons from dead non-player characters (NPCs), or finding NPCs that are found throughout the dungeons.

The possibility to increase the size of the player's party through the recruiting of NPCs was a tradition in all of the Eye of the Beholder series. It was also possible to import a party from Eye of the Beholder into The Legend of Darkmoon or from The Legend of Darkmoon into Assault on Myth Drannor; thus, a player could play through all three games with the same party.