The Madyn Plains was a plain located on the Nabooian moon of Rori. It was located between the Lake Octir Swamp and the Narmle Bog.
Sometime following the Battle of Yavin, a starship piloted by the smuggler Cal Handro that was transporting a new kind of spice for the Rebel Alliance crashed in the plains.
The Madyn Plains are one of many designated planetary regions in the MMORPG Star Wars Galaxies.