La Siberia is a comarca in the northeastern portion of the province of Badajoz in the autonomous community of Extremadura, Spain.

The foothills of the Montes de Toledo dominate the north, and the flatter Sierra Morena runs through the south.

[2] The Guadiana River flows the entire length of the comarca from northeast to southwest, going on to form most of the southern portion of the border between Spain and Portugal.

The region's inhabitants have created several reservoirs along the Guadiana, providing locals with ample water resources.

Almost all of the region has been declared a Special Protection Area (SPA) for birds because of the large populations of endangered species such as Eurasian black vultures and owls.

[2][8] Hunting small game is a common pastime in La Siberia; the most-prized animal being the red-legged partridge.

Fish native to the area include common barbel, Iberian nase, tench, and brown trout.