Little Blitzen River is a 12.5-mile (20.1 km) tributary of the Donner und Blitzen River in the U.S. state of Oregon. Little Blitzen River rises on the west flank of Steens Mountain about 20 miles (32 km) southeast of Frenchglen and about 70 miles (110 km) south of Burns in Harney County. Flowing west in a steep-walled canyon, it joins the South Fork Donner und Blitzen River at 42.6737752°N 118.7935277°W (Little Blitzen mouth) to form the Donner und Blitzen main stem, which continues north about another 40 miles (64 km) to its mouth at 43.291542°N 118.8199273°W (Donner und Blitzen River mouth) in Malheur Lake. The Donner und Blitzen River was named by soldiers of German origin and translates as "thunder and lightning".