Abrion Major was a terrestrial planet in the Abrion sector, located in the Slice portion of the Outer Rim Territories. One of two-hundred others within its sector, Abrion Major was an agriworld that helped formed the galaxy's bread-basket that was the Abrion sector. As such, their primary export was foodstuffs, delivered to the rest of the galaxy
Prior to the outbreak of the Clone Wars, the politician Esu Rotsino was made the senator for the entire Abrion sector, representing her homeworld and the sector in the Galactic Republic Senate. Around 22 BBY, shortly after the Republic had initiated conflict with the opposing Confederacy of Independent Systems, Rotsino recognized the Republic's stifling bureaucratic procedures and inequitable trade. Tendering the formal articles of secession, the Abrion sector seceded from the Republic into the Confederacy under her guidance, offering her a seat in the Separatist Senate as representative for Abrion Major and the sector as a whole. Abrion Major thus became a crucial point for the regional Separatist war-effort, primarily in their offensives along the Corellian Run in the Trailing Sectors. The Separatists had also sought to cause food crises in several Republic sectors, due to Abrion Major's and the entire Abrion sector's role as the galactic bread-basket.
Abrion Major was first mentioned in the new Star Wars canon in Rise of the Separatists, a 2019 supplement to Fantasy Flight Games' series of Star Wars Roleplaying products. In the Star Wars Legends, Abrion Major was first mentioned in HoloNet News Vol. 531 #52, an in-universe issue of the HoloNet News authored by Pablo Hidalgo and Paul Ens, published as part of the HoloNet News website on April 18, 2002.
- Rise of the Separatists