Tributaries of the River Thames

This article lists the tributaries of the River Thames from the sea to the source, in England.

Note: the River Medway shares the saline lower Thames Estuary.

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

Around his Throne the Sea-born Brothers stood, That swell with Tributary Urns his Flood.

First the fam'd Authors of his ancient Name, The winding Isis, and the fruitful Tame: The Kennet swift, for silver Eels renown'd; The Loddon slow, with verdant Alders crown'd: Cole, whose clear Streams his flow'ry Islands lave; And chalky Wey, that rolls a milky Wave: The blue, transparent Vandalis appears; The gulphy Lee his sedgy Tresses rears: And sullen Mole, that hides his diving Flood; And silent Darent, stain'd with Danish Blood.