Jarak Island () is an island in the straits of Malacca. It is administered as part of Perak, Malaysia. The island is granitic, heavily forested, and has a rocky shoreline. Jarak has been described as being in size.
The island is home to an endemic species of gecko, the Jarak Island bent-toed gecko (Cyrtodactylus jarakensis). The waters around the island host a number of coral reefs.
A notable, extensive survey of the island was documented by John Wyatt-Smith and Michael Tweedie in 1950, who were part of an expedition investigating scrub typhus on the island.