Western District was a command of the British Army.
Great Britain was divided into military districts on the outbreak of war with France in 1793. The role of Western District Commander, which was doubled hatted with that of Lieutenant-Governor of Plymouth, was based at Government House, Mount Wise in Devonport. In January 1876 a ‘Mobilization Scheme for the forces in Great Britain and Ireland’ was published, with the ‘Active Army’ divided into eight army corps based on the District Commands. This scheme disappeared in 1881, when the districts were retitled ‘District Commands. By the 1890s the command included the counties of Cornwall, Devon and Somerset and all of South Wales.
In 1901 Western District was grouped with South East District at Dover and Southern District at Portsmouth under Second Army Corps at Salisbury. 2nd Army Corps was renamed Southern Command in 1905.