Southwest Territory (disambiguation)

Southwest Territory or variant, may refer to:

West of the Appalachians, south of the Ohio, east of the Mississippi

 * Territory South of the River Ohio (aka Territory of the South-West), territory that became the state of Tennessee, USA
 * Southwest Territory's at-large congressional district

North American southwest

 * Old Southwest of the American frontier in the USA
 * Southwestern United States, what became of the frontier after the Old West era in the USA
 * Archaic Southwest, the pre-Columbian North American southwest

Other uses

 * Southwest Territory (Six Flags Great America), Gurnee, Illinois, USA; a themepark attraction
 * South West Africa, (South African non-governing territory of the South West), now Namibia
 * Southwestern Krai or Southwestern Land in the historical Russian Empire