Tributaries of the River Thames

This article lists the tributaries of the River Thames from the sea to the source, in England. There are also secondary lists of backwaters of the river itself and the waterways branching off.
Note: the River Medway shares the saline lower Thames Estuary.

Tributaries

The average discharge is taken from the lowest point at which measurements are taken, which may be upstream of the confluence.

Backwaters and cuts

This list comprises the principal instances; longest ex-mill races, with own articles are included; the main weirstream/river stream of each Thames lock is omitted and the smallest such associated instances; but the Sheepwash Channel is included for its importance in Oxford.

Name	Re-convergence	Length	Effluence
The Creek, Sunbury	Wheatley's Ait, Sunbury-on-Thames		Tumbling Bay weir, east Shepperton
Desborough Cut	SW Walton-on-Thames		NE Weybridge
Abbey River	Chertsey Lock		Penton Hook Island, Thorpe
Jubilee River	Black Potts Ait, Datchet		Boulter's Lock, Taplow
Clewer Mill Stream	Queen Elizabeth Bridge, Windsor		Bush Ait, Clewer, Windsor, Berkshire
Hennerton Backwater	Opposite Ferry Eyot		Above Camps Puddle, by foot of Wargrave Hill
Swift Ditch	Culham Bridge		Abingdon Lock
Seacourt Stream and Hinksey Stream	Kennington Railway Bridge, Oxford		North Wytham
Castle Mill Stream	Gasworks Bridge, Oxford		Port Meadow, Oxford
Bulstake Stream	Osney Rail Bridge		Four Rivers, Oxford
Sheepwash Channel	Four Rivers, Oxford		Castle Mill Stream at Isis Lock
Kingsbridge Brook/ Wolvercote Mill Stream	Above Godstow Lock and weir		Oxey Mead, south Yarnton, Oxfordshire