ITV London is the collective brand name and identity used by ITV plc for the ITV1 television channel in the London region.

The franchise for ITV1 for London and its environs is awarded to two broadcasters with one operating Monday to Friday afternoon and the other from Friday evening throughout the rest of the weekend. The weekday and weekend licences are currently held by Carlton Television (weekdays) and London Weekend Television (weekends) respectively, however as ITV plc owns both these companies they operate under the ITV1 brand rather than their legal names. The only noticeable differences between the two franchises is that local weather forecasts broadcast Friday to Sunday are branded as "London Weekend Weather", and is sponsored by a different company to weekday forecasts. ITV London like other ITV plc regions does not receive visual local identification for regional programming, although this happened much earlier than in other regions. From time to time however it is verbally called "ITV1 London".

In March 2004, ITN took over production of ITV London's regional news programme London Tonight from London News Network, which relocated from their previous South Bank studios to ITN's Gray's Inn Road headquarters.

ITV1 London is carried as the sole alternative ITV region to Sky Digital customers, currently carried on EPG position 993. It appears at that channel for all other ITV regions except London. The reason for this is so that audio description services, which are only carried on the London variant on satellite are readily available to all viewers. It is possible however for Sky viewers to receive all ITV regions under the "Other Channels" menu. Information can be found in order to do this on the Internet.

The Friday 5:15pm to Monday 5:59am franchise has been held by LWT since 2 August 1968 (LWT did not start broadcasting at 5.15 pm until 1 January 1982; up to the end of 1981 it took over from Thames Television at 7.00 pm) and the Monday 9:25am to Friday 5:15pm franchise has been held by Carlton since 1 January 1993.

ITV London is based at ITV plc's main headquarters, The London Studios, on the south bank of the River Thames, also home to London Weekend Television. Weekday London broadcaster Carlton Television also previously leased space in the facility, alongside GMTV,but now shares common space with LWT.