Utapau was a rocky remote planet in the Outer Rim's Utapau System that was filled with enormous sinkholes. Its native inhabitants were the Pau'ans and the Utai, while tribes of Amani also immigrated to the world.
Ringed by numerous moons, the remote sanctuary of Utapau is a planet pitted with enormous sinkholes. Its windswept surface is dry and desert-like, but deep in the porous crust, at the bottom of the sinkholes are pools of life-giving water. Many of the sinkholes on one of the planet's small continents are lined with intricate cities that stretch deep into caves and crevices beneath the planet's surface, as well as mining operations that seek to uncover valuable minerals from the planet's depths.
- "Utapau has long been a target of the Separatists. Dooku and Grievous haven't been able to make inroads with the Pau'ans or the Utai, but if they can enlist the Amani to revolt from within, that could cause dangerous civil unrest."
- ―Obi-Wan Kenobi
During the Clone Wars, Anakin Skywalker and Obi-Wan Kenobi were sent to investigate the death of Jedi Master Tu-Anh. This led them to locate a massive kyber crystal that the Confederacy of Independent Systems was attempting to acquire. They were able to destroy the crystal before it could fall into Separatist hands.
Late in the war, following the Battle of Coruscant, the Jedi Council learned that General Grievous―de facto leader of the Separatists following the death of Count Dooku―had taken refuge on Utapau with his Droid Army. The Republic sent Obi-Wan Kenobi and the 212th Attack Battalion to the planet, hoping to capture Grievous and end the Clone Wars. During the ensuing battle, Kenobi battled Grievous and successfully destroyed him.
However, in the aftermath, Order 66 was issued by Chancellor Palpatine and Kenobi's clone troops turned on him. The Jedi Master narrowly escaped the planet in Grievous's own starfighter, Soulless One. Utapau was soon placed under occupation by the Republic's successor state, the Galactic Empire.