The Norfolk Wildlife Trust (NWT) is one of 46 wildlife trusts covering Great Britain, Northern Ireland, Isle of Man and Alderney. Founded in 1926, it is the oldest of all the trusts. It has over 35,500 members and eight local groups and it manages more than fifty nature reserves and other protected sites. It also gives conservation advice to individuals and organisations, provides educational services to young people on field trips and organises entertainment and information events at nature reserves. The NWT reserves include twenty-six Sites of Special Scientific Interests, nine national nature reserves, twelve Nature Conservation Review sites, sixteen Special Areas of Conservation, twelve Special Protection Areas, eleven Ramsar sites, two local nature reserves, four Geological Conservation Review sites and five which are in Areas of Outstanding Natural Beauty.

The Wildlife Trusts, the trading name of the Royal Society of Wildlife Trusts, is an organisation made up of 46 local Wildlife Trusts in the United Kingdom, the Isle of Man and Alderney. The Wildlife Trusts, between them, look after more than 2,300 nature reserves, covering around 98,500 hectares. As of 2020, the Trusts have a combined membership of over 870,000 members.