List of annual events in London
List of major annual events in London, England, by month.
| Month | Event | Location | Year first run |
| January | New Year's Day Parade | Westminster | 1987 |
| January | London Boat Show | ExCeL Exhibition Centre, Newham | 1956 |
| February | The Franchise Show | ExCeL Exhibition Centre | 2009 |
| March | Ideal Home Show | Earls Court Exhibition Centre | 1908 |
| March | Head of the River Race | River Thames | 1926 |
| April | London Marathon | Greenwich, Southwark, Tower Hamlets, City of London, Westminster | 1981 |
| April | The Boat Race | Putney to Mortlake on the River Thames | 1829 |
| April | London Book Fair | Earls Court Exhibition Centre | |
| May | Chelsea Flower Show | Royal Hospital Chelsea | 1862 |
| June | Trooping the Colour | Horse Guards Parade, Westminster | |
| June | City of London Festival | City of London | 1962 |
| June | Carnival de Cuba | Southwark Park | 2005 |
| June | Pride London | Westminster | 1972 |
| June | Motorexpo | Canary Wharf | 1996 |
| June | World Naked Bike Ride | Central London | 2001 |
| June | London Festival of Architecture | all of Greater London | 2004 |
| July | Hampton Court Flower Show | Hampton Court Park | 1990 |
| August | The Proms | Royal Albert Hall | 1895 |
| August | Carnaval Del Pueblo | Burgess Park | 1999 |
| August | Notting Hill Carnival | Notting Hill | 1964 |
| September | London Open House | all of Greater London | 1992 |
| September | London Freewheel | City of London and Westminster | 2007 |
| October | London Film Festival | BFI Southbank | 1957 |
| November | Lord Mayor's Show | City of London | 1535 |
| November | Million Mask March | Westminster | 2012 |