The Southwestern Front () was an army group of the Imperial Russian Army during World War I. During the conflict it was responsible for managing operations along a front line that stretched 615 kilometers, from what is now southern Belarus to northern Romania, and took part in such operations as the Battle of Galicia and the Brusilov Offensive. It was established in August 1914 and lasted throughout the war until the unrest caused by the Russian Revolution, at which point it was demobilized along with the rest of the Russian Army in early 1918. In total some two million troops had been under its command.