The Island of Dr. Brain is the second game in the Dr. Brain series by Sierra On-Line. It was released in 1992 and was only available for IBM PC compatibles. Like the first game in the Dr. Brain series, Castle of Dr. Brain, Island is an educational puzzle adventure game.

In the sequel to Castle of Dr. Brain, you will have to assist Dr. Brain in retrieving a battery for one of his experiments - the plans for which were stolen by Dr. Brain's archrival scientist. In order to beat the scientist, you will have to tour the Island of Dr. Brain in search of the elusive battery. On your way you will have to solve a plethora of puzzles in various difficulty levels, and even find use for a bunch of pink flamingoes!