|Universe||Star Wars Universe|
|Region||Outer Rim Territories|
|Class||Terrestrial (desert world)|
|Notable Species||Jawas, Tusken Raiders, "mole creatures", Trooshti, Dewbacks, Profoggs, Krayt Dragons, Banthas, Eopies, Rontos et cetera|
|Rotation period||23 standard hours|
|Orbital Period||304 local days|
Tatooine is a desolate desert world and the innermost planet in the binary star system Tatoo, located in the Outer Rim Territories of the galaxy. A very ancient world, paleontological evidence suggest that Tatooine was once covered by vast oceans and had a much more humid climate. Today, however, the planet is very arid, and liquid water covers no more than 1% of its surface. Due to the harsh environment and the unbearable heat and brightness caused by the two suns, the planet's population is concentrated in a relatively mild area on the northern hemisphere. The equatorial region is believed to be completely uninhabited.
Despite its hostile climate, Tatooine is home to a great variety of native lifeforms, including three sapient rodentoid species: the Jawas, the Tusken Raiders and the so-called "mole creatures"; and a poorly-known insectoid race known as the Trooshti. Besides these native species, the planet is inhabited by Humans and many other species from all over the galaxy. Tatooine is one of the many worlds politically controlled by the Hutts. The planet is also notable for being home to one of the most feared figures of the galaxy: the evil sith lord Darth Vader.
In ancient times, Tatooine was a lush world inhabited by a technologically-advanced rodentoid race known as the Kumungah. However, the planet was conquered by the hostile imperialist Rakata, who were later defeated and forced out by the native Kumungah. As a response, the Rakata used their impressive technology to bombard the planet, fusing the silicates of the soil into glass and evaporating the surface water. Through the eons, the glassy soil suffered erosion and became sand. The surviving Kumungah were divided into two extremely different species: the Jawas and the Tusken Raiders (also known as Ghorfas or Sandpeople). It is possible that the subterranean "mole creatures" are also descendants of the Kumungah.