Name
Confluence
Average discharge (m3 /s)[ 1]
Source
Length
Tributaries
Catchment
Notes
Ebbsfleet River
Northfleet 51°27′01″N 0°19′47″E / 51.4503°N 0.3296°E / 51.4503; 0.3296 (Northfleet )
Springhead , just S. of the A2 road at Southfleet
2.4 miles (3.9 km)
Approx. 10 miles due west of London Stone at grid reference TQ860786
Mardyke
Purfleet 51°29′08″N 0°13′40″E / 51.4856°N 0.2278°E / 51.4856; 0.2278 (Mardyke )
0.48
Holden's Wood between Great Warley and Little Warley [ 2]
11 miles (18 km)
35 square miles (91 km2 )
Darent River Darent
Dartford 51°28′49″N 0°13′03″E / 51.4802°N 0.2176°E / 51.4802; 0.2176 (River Darent )
0.72
Westerham
21 miles (34 km)
River Cray
154 square miles (400 km2 )[ 3]
Tidal reach: Dartford Creek
Ingrebourne River Ingrebourne or Ingrebourne
Rainham, London 51°30′27″N 0°10′24″E / 51.5075°N 0.1733°E / 51.5075; 0.1733 (River Ingrebourne )
0.33
Brentwood
27 miles (43 km)
Tidal reach: Rainham Creek
Beam River Beam and/or Rom and Bourne Brook
Dagenham 51°30′42″N 0°09′31″E / 51.5118°N 0.1587°E / 51.5118; 0.1587 (River Beam )
0.34
Stapleford Abbotts Golf Club, Watton's Green
13 miles (21 km)
The Ravensbourne
Rom upstream of inflow of Ravensbourne
Beam Wogebourne
Crossness , Thamesmead 51°30′45″N 0°07′27″E / 51.5125°N 0.12417°E / 51.5125; 0.12417 (Wogebourne )
Oxleas Wood , Shooter's Hill
5 miles (8.0 km)
Roding River Roding
Creekmouth 51°30′52″N 0°05′55″E / 51.5145°N 0.0987°E / 51.5145; 0.0987 (River Roding )
1.85
Molehill Green, near Dunmow
31 miles (50 km)[ 4]
Cripsey Brook Cran BrookAlders Brook Seven Kings Water Mayes Brook
132 square miles (340 km2 )[ 5]
Tidal reach: Barking Creek
Lea00 River Lea
Leamouth 51°30′26″N 0°00′33″E / 51.5071°N 0.0092°E / 51.5071; 0.0092 (River Lea )
5.48
Leagrave
42 miles (68 km)
The Hackney Brook River Moselle Pymmes Brook River Ching Turkey Brook River Stort River Beane River Mimram
550 square miles (1,400 km2 )[ 5]
Tidal reach: Bow Creek
Ravensbourne River Ravensbourne or Ravensbourne
Deptford 51°29′01″N 0°01′07″W / 51.4835°N 0.0185°W / 51.4835; -0.0185 (River Ravensbourne )
0.43
Keston
11 miles (18 km)
Spring Brook River Pool River Quaggy
69 square miles (180 km2 )
Tidal reach: Deptford Creek
Neckinger River Neckinger or the Neckinger Channel
Shad Thames 51°30′09″N 0°04′15″W / 51.5024°N 0.0708°W / 51.5024; -0.0708 (River Neckinger )
north Southwark
0.8 miles (1.3 km) (about; longer old catchment drains to other surface and combined water conduits)
Mainly diverted to surface and combined sewer drains
Wal River Walbrook or Walbrook
Walbrook Wharf, just west of Cannon Street railway station .51°30′34″N 0°05′34″W / 51.5094°N 0.0928°W / 51.5094; -0.0928 (River Walbrook )
north walls of City of London (trad. )
0 miles (0 km)
Diverted to surface and combined sewer drains
Fleet River Fleet or Fleet stream
Bazelgette's Mid and Lower Northern Interceptor Sewers (previously a stream/field ditch ending at Blackfriars, London )51°30′39″N 0°06′17″W / 51.5108°N 0.1048°W / 51.5108; -0.1048 (River Fleet )
Hampstead Heath
1 mile (1.6 km) (as to connecting lengths of ponds)
Lamb's Conduit , Fagswell Brook
Diverted to surface and combined sewer drains . Was also known as the Holbourne/Holborn
Effra River Effra
Vauxhall 51°29′14″N 0°07′33″W / 51.4873°N 0.1258°W / 51.4873; -0.1258 (River Effra )
west and east limits of Gypsy Hill , London
0 miles (0 km)
Diverted to surface and combined sewer drains
Tyburn River Tyburn , the Tyburn or the Ty Bourne
north and south of Vauxhall Bridge , and small forked mouth around Horseguards Avenue, Westminster (4 mouths)51°29′17″N 0°07′43″W / 51.4880°N 0.1287°W / 51.4880; -0.1287 (Tyburn )
South Hampstead
0 miles (0 km)
Diverted to surface and combined sewer drains
Falconbrook
Battersea 51°28′05″N 0°10′51″W / 51.4680°N 0.1808°W / 51.4680; -0.1808 (Falconbrook )
Tooting Graveney Common , Tooting and east end of Poynder's Road, Clapham[ 6] [ 7]
0 miles (0 km)
Diverted to surface and combined sewer drains
Westbourne River Westbourne
Chelsea 51°29′06″N 0°09′13″W / 51.4850°N 0.1537°W / 51.4850; -0.1537 (River Westbourne )
Grange Gardens, Hampstead, West Hampstead and two sources in east Willesden (today's Brondesbury Park )
0 miles (0 km)
Tyburn Brook
Diverted to surface and combined sewer drains
Counter's Creek
west Chelsea /east Fulham51°28′40″N 0°10′46″W / 51.4778°N 0.1794°W / 51.4778; -0.1794 (Counter's Creek )
Kensal Green
0 miles (0 km)
Diverted to surface and combined sewer drains
Wandle River Wandle
Wandsworth 51°27′46″N 0°11′43″W / 51.4629°N 0.1952°W / 51.4629; -0.1952 (River Wandle )
1.7
Waddon
9 miles (14 km)
River Graveney
78 square miles (200 km2 )[ 5]
Beverley Brook
Putney 51°28′18″N 0°13′22″W / 51.4718°N 0.2229°W / 51.4718; -0.2229 (Beverley Brook )
Worcester Park
9 miles (14 km)[ 5]
Pyl Brook
25 square miles (65 km2 )[ 5]
Stamford Brook
Hammersmith 51°29′25″N 0°14′03″W / 51.4903°N 0.2341°W / 51.4903; -0.2341 (Stamford Brook )
Acton
0 miles (0 km)
Diverted to surface and combined sewer drains – old tidal mouth: Hammersmith Creek
Bollo or Bollar Brook
Chiswick 51°28′46″N 0°15′04″W / 51.4794°N 0.2512°W / 51.4794; -0.2512 (Bollo Brook )
Acton
0 miles (0 km)
Diverted to surface and combined sewer drains
Brent River Brent
Brentford 51°28′59″N 0°18′00″W / 51.4830°N 0.3000°W / 51.4830; -0.3000 (River Brent )
1.32
Barnet
18 miles (29 km)
Dollis Brook Folly Brook Mutton Brook
58 square miles (150 km2 )[ 5]
Duke of Northumberland's River (west) and (east)
Isleworth 51°28′13″N 0°19′16″W / 51.4704°N 0.3212°W / 51.4704; -0.3212 (Duke of Northumberland's River )
River Crane & River Colne
9.3 miles (15.0 km) (includes eastern 2.5 miles)
Artificial distributary of the Colne and Crane
Crane River Crane
Isleworth 51°27′55″N 0°19′17″W / 51.4654°N 0.3215°W / 51.4654; -0.3215 (River Crane )
0.54
Hayes, Hillingdon
9 miles (14 km)
Yeading Brook
42 square miles (110 km2 )[ 5]
Sudbrook
Petersham 51°26′55″N 0°18′21″W / 51.4487°N 0.3058°W / 51.4487; -0.3058 (Sudbrook (stream) )
Dann's Pond, Richmond Park
2 miles (3.2 km)
Latchmere Stream
Culverted
Hogsmill River
Kingston upon Thames 51°24′33″N 0°18′31″W / 51.4093°N 0.3085°W / 51.4093; -0.3085 (Hogsmill River )
0.98
Ewell
6 miles (9.7 km)
Bonesgate Stream
28 square miles (73 km2 )
Rythe The Rythe
Thames Ditton 51°23′28″N 0°19′34″W / 51.3911°N 0.3260°W / 51.3911; -0.3260 (The Rythe )
north Oxshott
4.2 miles (6.8 km)
Mole River Mole
Molesey 51°24′04″N 0°20′21″W / 51.4012°N 0.3393°W / 51.4012; -0.3393 (River Mole )
5.43
Rusper
50 miles (80 km)
Ifield BrookGatwick Stream Earlswood Brook Pipp Brook The Rye
198 square miles (510 km2 )
Longford River
Hampton Court Palace 51°24′05″N 0°20′18″W / 51.4013°N 0.3383°W / 51.4013; -0.3383 (Longford River )
River Colne
12 miles (19 km)
Artificial distributary of the Colne
Ash River Ash
southwest corner of Sunbury-on-Thames 51°23′52″N 0°25′02″W / 51.3977°N 0.4173°W / 51.3977; -0.4173 (River Ash )
River Colne
6.2 miles (10.0 km)[ 8]
Distributary of the Colne
Wey River Wey (and Caker Stream)
Weybridge 51°22′49″N 0°27′25″W / 51.3804°N 0.4570°W / 51.3804; -0.4570 (River Wey )
6.95
Hartley Mauditt and Upper Farringdon, Hampshire (main, north or west branch); parishes of Fernhurst /Lurgashall in South Downs National Park (south branch)
53 miles (85 km)
River Ock, Surrey Cranleigh Waters River Tillingbourne Hoe Stream (fed by the Hodge Brook and Stanford Brook) Of south branch: River Slea, Hampshire Dead Water Cooper's Stream
350 square miles (910 km2 )
Source of south branch about 52 miles to/from mouth.
Bourne River Bourne, Chertsey
Weybridge 51°22′43″N 0°27′50″W / 51.3785°N 0.4638°W / 51.3785; -0.4638 (River Bourne )
Windsor Great Park , Ascot and Swinley Forest
13.2 miles (21.2 km)
River Bourne, Addlestone
Colne River Colne
Staines 51°25′58″N 0°30′55″W / 51.4329°N 0.5152°W / 51.4329; -0.5152 (River Colne )
4.05 (before all distributaries)
North Mymms
36 miles (58 km)
River Pinn River Misbourne River Chess River Gade River Ver
Colne Brook
Hythe End , Wraysbury51°26′16″N 0°32′07″W / 51.4379°N 0.5352°W / 51.4379; -0.5352 (Colne Brook )
River Colne
9.2 miles (14.8 km)
Distributary of the Colne
Cut The Cut
Bray 51°29′57″N 0°40′53″W / 51.4991°N 0.6815°W / 51.4991; -0.6815 (The Cut )
North Ascot
14 miles (23 km)
Bull Brook , The Bourne
Wye River Wye
Bourne End 51°34′13″N 0°42′40″W / 51.5704°N 0.7111°W / 51.5704; -0.7111 (River Wye )
1.00
West Wycombe 51°38′52″N 0°48′45″W / 51.647802°N 0.812522°W / 51.647802; -0.812522 (River Wye )
8.7 miles (14.0 km)
Hughenden Stream
In wet years this river is additionally sourced by an aquifer further up the same valley, extending the river by another mile in length.
Hamble Brook
Hambleden Marina51°33′31″N 0°52′10″W / 51.5585°N 00.8695°W / 51.5585; -00.8695 (Hamble Brook )
Sourced by an aquifer in the Hambleden Valley, occasionally dry.
Loddon River Loddon
Wargrave 51°30′06″N 0°52′48″W / 51.5017°N 0.8800°W / 51.5017; -0.8800 (River Loddon )
2.16
Basingstoke
28 miles (45 km)
St Patrick's Stream River Broadwater Emm Brook River Blackwater
400 square miles (1,000 km2 )
Berry Brook Berry Brook
Hallsmead Ait , near Shiplake 51°29′29″N 0°53′43″W / 51.4913°N 0.8953°W / 51.4913; -0.8953 (Berry Brook )
street (Surface Water) drains of South View Avenue, Caversham
4 miles (6.4 km)
Kennet River Kennet
Reading 51°27′32″N 0°56′58″W / 51.4590°N 0.9495°W / 51.4590; -0.9495 (River Kennet )
9.75
Swallowhead spring and others near Silbury Hill
45 miles (72 km)
Foudry Brook Clayhill Brook River Enborne River Lambourn River Dun River Og
450 square miles (1,200 km2 )[ 9]
Pang River Pang
Pangbourne 51°29′09″N 1°05′17″W / 51.4858°N 1.0880°W / 51.4858; -1.0880 (River Pang )
0.62
Compton
14 miles (23 km)
River Bourne, Berkshire River Roden
66 square miles (170 km2 )[ 10]
Thame River Thame
Dorchester 51°38′05″N 1°09′58″W / 51.6348°N 1.1660°W / 51.6348; -1.1660 (River Thame )
3.90
Rowsham / Cheddington , Vale of Aylesbury
40 miles (64 km)
310 square miles (800 km2 )[ 11]
Ock River Ock
Abingdon 51°39′59″N 1°17′02″W / 51.6665°N 1.2838°W / 51.6665; -1.2838 (River Ock )
1.52
Cock Well, Little Coxwell
21 miles (34 km)
Holywell Brook (rising in same parish) Stutfield Brook
Cherwell River Cherwell
Oxford 51°44′32″N 1°14′54″W / 51.7421°N 1.2483°W / 51.7421; -1.2483 (River Cherwell )
7.2
Hellidon
40 miles (64 km)
River Ray River Swere
364 square miles (940 km2 )[ 12]
Evenlode River Evenlode
Above King's Lock 51°47′06″N 1°20′16″W / 51.7849°N 1.3378°W / 51.7849; -1.3378 (River Evenlode )
3.7
Moreton-in-Marsh , Oxfordshire
10 miles (16 km)
River Glyme Rollright Brook
Windrush River Windrush
Newbridge 51°42′36″N 1°25′02″W / 51.7100°N 1.4173°W / 51.7100; -1.4173 (River Windrush )
3.27
Taddington, Gloucestershire
40 miles (64 km)
River Dikler River Eye, Gloucestershire
140 square miles (360 km2 )[ 13]
Cole River Cole
Above Buscot Lock 51°41′19″N 1°40′38″W / 51.6887°N 1.6772°W / 51.6887; -1.6772 (River Cole )
1.20
Burderop Park, Hodson, Wiltshire
17 miles (27 km)
Dorcan Stream (has subsumed original Cole sources) Pennyhooks Brook
Leach River Leach
Lechlade 51°41′21″N 1°40′38″W / 51.6891°N 1.6772°W / 51.6891; -1.6772 (River Leach )
0.75
Hampnett , Gloucestershire
18 miles (29 km)
Coln00 River Coln
Lechlade 51°41′17″N 1°42′19″W / 51.6881°N 1.7052°W / 51.6881; -1.7052 (River Coln )
2.06
Brockhampton, Gloucestershire
30 miles (48 km)
Ray River Ray, Wiltshire
Cricklade 51°38′39″N 1°49′31″W / 51.6442°N 1.8252°W / 51.6442; -1.8252 (River Ray )
1.28
Markham Hill, Wroughton , Wiltshire
12 miles (19 km)
Key River Key
Cricklade 51°38′33″N 1°50′46″W / 51.6424°N 1.8461°W / 51.6424; -1.8461 (River Key )
West of Battle Lake, Braydon
6.5 miles (10.5 km)
Churn River Churn
Cricklade 51°38′42″N 1°51′12″W / 51.6450°N 1.8533°W / 51.6450; -1.8533 (River Churn )
0.86
Seven Springs, Gloucestershire
16 miles (26 km)