《神秘岛》（英语：Myst，中国大陆译作「神秘岛」）是罗宾·米勒和兰德·米勒设计并监督的图形冒险益智游戏，Cyan（今Cyan Worlds）开发，Broderbund发行。米勒兄弟1991年开始创作《神秘岛》，1993年9月24日Macintosh版发行；这是Cyan迄今最大的项目。游戏在世嘉土星、PlayStation、3DO、Microsoft Windows、雅达利Jaguar CD、CD-i、AmigaOS、PlayStation Portable、任天堂DS、iOS和任天堂3DS平台移植或重制。

Myst is a graphic adventure puzzle video game designed and directed by the brothers Robyn and Rand Miller. It was developed by Cyan, Inc., published by Brøderbund, and initially released on the Macintosh platform on September 24, 1993. Remakes and ports of the game have been released for platforms including Sega Saturn, PlayStation, 3DO, Microsoft Windows, Atari Jaguar CD, CD-i, AmigaOS, PlayStation Portable, Nintendo DS, iOS, and OS X. The game puts the player in the role of the Stranger, who uses a special book to travel to the island of Myst. There, the player solves puzzles and travels to other worlds known as "Ages". Clues found in each of these Ages help to reveal the back-story of the game's characters. The game has several endings, depending on the course of action the player takes.