Transport for London red routes, officially known as the Transport for London Road Network, are a network consisting of certain major roads in Greater London under the jurisdiction of Transport for London.
These are 580 km (360 miles) of key non-motorways, which are distinguished by their red road markings and often by signage. The network makes up 5% of the overall road network in London, but carries 30% of traffic.
Transport for London also acts as a London highways authority basic advisor and in particular issues and refers to its influential Streetscape Guidance, standards for roads and streets to make London's roads safer and more efficient.
| Route | Start of TfL control | End of TfL control | Notes |
|---|---|---|---|
| A1 A1 | Angel, Islington | Borehamwood | |
| A10 A10 | London Bridge | M25 Junction 25 | Including Cycleway 1 |
| A11 A11 | Aldgate | Bow Interchange | Including Cycleway 2 |
| A12 A12 | Blackwall Tunnel | M25 Junction 28 | |
| A13 A13 * | Aldgate | Purfleet | Including Cycleway 3
*Under private-sector contract |
| A100 A100 | Tower Bridge | Bricklayers Arms | Including Tower Bridge
Part of the London Inner Ring Road |
| A101 A101 | Limehouse | Bermondsey | Rotherhithe Tunnel |
| A102 A102 | Lower Clapton | Hackney Wick | |
| A102 A102 | Blackwall Tunnel | Blackheath | Formerly |
| A107 A107 | Stamford Hill | Lower Clapton | |
| A127 A127 | Gallows Corner | M25 Junction 29 | |
| A1020 A1020 | Beckton | Woolwich Ferry | |
| A1023 A1023 | Tower Bridge | Limehouse Link | |
| A1202 A1202 | Aldgate | Old Street | Part of the London Inner Ring Road |
| A1205 A1205 | Bow | Poplar | |
| A1261 A1261 * | Limehouse | Leamouth | * Under private-sector contract |
| A1400 A1400 | M11 Junction 4 | Gants Hill | |
| A2 A2 | Borough | Bexley | |
| A20 A20 | New Cross | Ruxley | |
| A21 A21 | Lewisham | M25 Junction 4 | |
| A22 A22 | Purley | Whyteleafe | |
| A23 A23 | Kennington | Chipstead | |
| A24 A24 | Clapham Common | Nonsuch Park, Cheam | Including Cycleway 7 |
| A200 A200 | London Bridge | Bermondsey | Including Cycleway 4 |
| A201 A201 | King's Cross | Bricklayers Arms | Including Cycleway 6 |
| A202 A202 | Victoria | New Cross | Including Cycleway 5 and Vauxhall Bridge
Part of the London Inner Ring Road |
| A203 A203 | Vauxhall | Brixton | |
| A205 A205 | M4 Chiswick | Woolwich Ferry | South Circular Road |
| A210 A210 | Lee | Eltham Green | |
| A214 A214 | Wandsworth | Streatham | |
| A217 A217 | Rosehill | Belmont | |
| A232 A232 | Nonsuch Park, Cheam | Locksbottom | |
| A240 A240 | Kingston Bypass | Worcester Park Road | |
| A243 A243 | Kingston Bypass | Ashtead Common | |
| A2213 A2213 | Kidbrooke | Lee | |
| A3 A3 | London Bridge | Ditton Hill | Except Elephant & Castle to A2
Including Cycleway 7 and London Bridge Part of the London Inner Ring Road |
| A30 A30 | Cranford | Staines | |
| A302 A302 | Parliament Square | Elephant & Castle | Except Waterloo to the Imperial War Museum
Part including Cycleways 3 and 6, and Westminster Bridge |
| A306 A306 | Barnes | Roehampton | |
| A312 A312 | Northolt | Hanworth | |
| A316 A316 | Chiswick | Sunbury-on-Thames | |
| A3036 A3036 | Vauxhall | Westminster Bridge | |
| A3200 A3200 | Westminster Bridge | London Bridge | |
| A3203 A3203 | Millbank | Lambeth | Lambeth Bridge only |
| A3204 A3204 | Vauxhall | Elephant & Castle | Part of the London Inner Ring Road |
| A3205 A3205 | Vauxhall | Wandsworth | Including Cycleway 8 |
| A3211 A3211 | Westminster | Tower Bridge | Including Cycleway 3 |
| A3212 A3212 | Westminster | Battersea Bridge | Including Cycleway 8 |
| A3220 A3220 | The Westway | Clapham Common | Including Battersea Bridge
Part formerly |
| A4 A4 | Hyde Park Corner | Longford | |
| A40 A40 | The Westway | Uxbridge | Part formerly |
| A41 A41 | Baker Street | M1 Junction 4 | |
| A400 A400 | Euston | Camden Town | |
| A406 A406 | M4 Chiswick | Beckton | North Circular Road |
| A4180 A4180 | Northolt | Ruislip | |
| A4200 A4200 | Camden Town | Mornington Crescent | |
| A4202 A4202 | Marble Arch | Hyde Park Corner | Part of the London Inner Ring Road |
| A5 A5 | Hyde Park Corner | Warwick Avenue | Part of the London Inner Ring Road |
| A501 A501 | The Westway | Old Street | Part of the London Inner Ring Road |
| A503 A503 | Camden Town | Seven Sisters | |
| A5205 A5205 | Warwick Avenue | Regent's Park |
As of 2024, TfL does not charge for parking on the network.
In 2015, TfL introduced the introduction of a speed limit of 20 mph on certain red routes, as part of a pilot program to reduce road deaths. In 2018 and 2023, TfL announced the introduction of a speed limit of 20 mph for certain red routes across central London.

The division of Transport for London responsible for the network was known as London Streets until 2018. It was known as TfL Street Management for many years until 2007.
From 2007 London Streets used a blue and grey variant of the Transport for London roundel hosting the "Streets" name. This was withdrawn in 2014.
Motorways within London are the responsibility of National Highways.
The rest of the streets are the responsibility of the London boroughs – or natural person or corporate owners predominantly in the case of the small percentage of roads that are private roads, and over which the law provides for shared responsibilities with users in the case of public rights of way.