Relaea (pronounced /rɛˈleɪ/) was the fourth planet orbiting the binary star composed of the K-type main sequence stars Relius Prime and Relius II in the Relaea system of the Unknown Regions. The sole habitable world in the system apart from Rao, it developed no sentient life, which led to it being ignored by the nearby Rakata civilization, though the race did use the planet for weapons testing. After the Rakatan Infinite Empire shattered and fell some time around 27,500 BBY, Relaea was forgotten by the organization's successors.