Bure Broads and Marshes is a 741.1-hectare (1,831-acre) biological Site of Special Scientific Interest north-east of Norwich in Norfolk.^[1][2] Most of it is a Nature Conservation Review site, Grade I^[3] and National Nature Reserve.^[4] Two areas are nature reserves managed by the Norfolk Wildlife Trust, Cockshoot Broad^[5] and Ranworth Broad.^[6] It is part of the Broadland Ramsar site^[7] and Special Protection Area^[8] and The Broads Special Area of Conservation,^[9]

This is described by Natural England as a "nationally and internationally important wetland complex", which is situated on fenland peats in the floodplain of the River Bure. A notable feature is an extensive area of swamp alder carr on unstable peats and mud. There are a number of rare bird and butterfly species.^[10]