Jiaan, a planet situated within the Jiaan system, resided in the Almak sector of the Mid Rim. In the initial years following the New Order's establishment in 19 BBY, Jiaan was among the numerous planets that suffered subjugation and devastation at the hands of the Galactic Empire's forces. This targeting occurred after Jedi Knight Tyneir Renz, a Human hailing from Jiaan, managed to evade the Great Jedi Purge. The destruction of Jiaan resulted in the deaths of Renz's wife and son, but he succeeded in rescuing his daughter, Padija Anjeri.
The first mention of Jiaan occurred within the character statistics block for Tyneir Renz, featured in "Idol Intentions," a short story penned by Patricia A. Jackson. This story appeared in the February 1997 twelfth issue of Star Wars Adventure Journal, a supplementary publication for Star Wars: The Roleplaying Game by West End Games. The reference book The Essential Atlas, published in 2009, located the Jiaan system, and thus Jiaan itself, in grid square J-17.