River Tud is a tributary of the River Wensum, Norfolk in the East of England. The Tud's source is just south of East Dereham and it flows in an easterly direction for 27 km to its confluence with the Wensum below Hellesdon mill. According to a 2024 citizen science project, the Tud should be classified as a chalk stream.

Course

The Tud passes through the villages of North Tuddenham, Hockering, East Tuddenham, Honingham, Easton, Costessey and finally flows under the Marriott's Way before joining the Wensum at Hellesdon Mill.

Ecology

The Tud's water is crystal clear, shallow, fast-flowing and has lush weed beds full of aquatic life including crayfish, lampreys, bullheads, freshwater shrimps and stone loach.

Angling

The river is well known for the quality dace fishing. Trout can also be caught particularly in the upper reaches. Angling is mostly private. The river has suffered from the odd case of pollution.