Crystal Island

Crystal Island may refer to:


 * Crystal Island (building project), a future building project in Moscow, Russia
 * Crystal Island: Uncharted Discovery, an educational video game
 * Crystal Island: Lost Investigation, an educational video game made by the same group as the first
 * Crystal Island (Ontario), an island in the Detroit river
 * Crystal Island (game), a 1990s heroic fantasy play-by-mail game similar to Dungeons & Dragons.