Bure Marshes National Nature Reserve (NNR) is maintained by English Nature in Norfolk, England, within The Broads National Park.
It is mostly fen land and includes four Broads which are disused peat workings dug between 900 and 1350:
- Hoveton Great Broad managed by English Nature
- Decoy Broad managed by English Nature
- Ranworth Broad owned/managed by Norfolk Wildlife Trust
- Cockshoot Broad owned/managed by Norfolk Wildlife Trust
In open fens, reed, sedge and marsh hay are still harvested, mainly for the thatching industry.