Magna Britannia, being a concise topographical account of the several counties of Great Britain was a topographical and historical survey published by the antiquarians Daniel Lysons and his brother Samuel Lysons in several volumes between 1806 and 1822. It covers the counties of Bedfordshire, Berkshire, Buckinghamshire, Cambridgeshire, Cheshire, Cornwall, Cumberland, Derbyshire, and Devon. The work was curtailed in 1819 on Samuel Lysons' death. An earlier work under the same title had been compiled by Thomas Cox.