thumb|right|View from the Marshland bird hide, with a ship, on [[River Ouse, Yorkshire|the Ouse, en route to Goole, in the background.]]
Blacktoft Sands RSPB reserve is a nature reserve in the East Riding of Yorkshire, England. It is managed by the Royal Society for the Protection of Birds, which leases the site from Associated British Ports.
Description
The site is on the southern bank of the Ouse, west of its confluence with the River Trent, opposite the village of Blacktoft, and is a wetland. Being at the beginning of the Humber Estuary, the water is slightly saline. The reserve's tidal reedbed is the largest in England. It is managed using a mixture of grazing with our six konik horses, reed cutting and maintaining and excavation of pools within the reedbed.