The Royal Australian Survey Corps (RA Svy) was a Corps of the Australian Army, formed on 1 July 1915 and disbanded on 1 July 1996. As one of the principal military survey units in Australia, the role of the Royal Australian Survey Corps was to provide the maps, aeronautical charts, hydrographical charts and geodetic and control survey data required for land combat operations.

Functional responsibilities associated with this role were: theatre wide geodetic survey for – artillery, naval gunfire and close air support – mapping and charting – navigation systems – command and control, communications, intelligence, reconnaissance and surveillance systems; map production and printing for new maps and charts, plans, overprints, battle maps, air photo mosaics and photomaps, rapid map and chart revision; map holding and map distribution; production, maintenance and distribution of digital topographic information and products. RA Svy survey and mapping information was, and still is, a key information source for geospatial intelligence.

The operational doctrine was that the combat force deployed into the area of operations with topographic products adequate for planning, force insertion and initial conduct of tactical operations, that new products and broad area updates of the topographic base would be provided by the support area and communication zone survey forces, and that the combat support survey force in the area of operations would update the topographic base, add tactical operational and intelligence information and provide the value-added products required by the combat force.

The Historical Collection of the Survey Corps is maintained by the Australian Army Museum of Military Engineering at Holsworthy Barracks, south-west Sydney, New South Wales. Survey Corps Associations of ex-members, family and friends are located in Adelaide, Bendigo, Brisbane, Canberra, Perth and Sydney. Many wartime maps produced by the Survey Corps are in the Australian War Memorial collection, while all of the maps produced by the Corps are also in the national collection at the National Library of Australia. All of these are available to the public and some are on-line.

Australia's first surveyor, Lieutenant Augustus Alt, was an Army officer of the 8th (The King's) Regiment of Foot, which arrived in Australia with the First Fleet in January 1788. Eighteen years before him, Lieutenant James Cook, Royal Navy, used his knowledge and skills of topographic survey by plane-table for his surveys and charting of the east coast. This graphical method of topographic survey, first used before 1600, was the mainstay of the Australian Survey Corps for the first 20 years and used in the two world wars and occasionally much later. Cook had learned surveying in Canada from Royal Engineer Samuel Holland who then (1758) was the first Surveyor-General of British North America.

For 113 years after the arrival of the First Fleet, much of the mapping of Australia, mainly for colonial exploration, settlement and development, was supervised and conducted by naval and military officers. These officers included the well known explorers and surveyors: Captain Matthew Flinders, Royal Navy; Lieutenant William Dawes, (New South Wales); Lieutenant Philip Parker King, Royal Navy (mainly Tasmania, Western Australia and Northern Territory), Lieutenant John Oxley, Royal Navy, (New South Wales); Lieutenant Colonel Sir Thomas Mitchell (New South Wales, Victoria and Queensland); Captain Charles Sturt (New South Wales and South Australia); Lieutenant John Septimus Roe, Royal Navy (Western Australia), and Colonel William Light (South Australia).

After 100 years of settlement some topographic maps had been produced for both public and private use but only a few maps were of any real military utility. The colonial part-time Defence Forces prepared small-area training manoeuvre maps and some colonies had produced small systematic topographic surveys for defence of the main ports of trade and commerce in the 1880s and 1890s. That is not to say that the need for topographic mapping was not a government and public concern but there were only minor attempts to allocate appropriate public resources.

After Federation in 1901, the Defence Act 1903 made provision for military survey but nothing was immediately done to address the matter. Most recently a royal commission into the way the British Army had conducted itself in South Africa (Boer War) found that the troops had to fight without adequate topographic information. Indeed, accurate maps of the Boer republics did not exist. The Times' history of the Boer War 1899–1902 included: 'The chief deduction to be made in the matter is that no efforts during a war will compensate for the lack of a proper topographical survey made in peace time. Maps are a necessity to a modern army, and the expense of making them is very small compared with the cost of a campaign.'