
The Fulham by-election, in Fulham, on 10 April 1986 was held following the death of the Conservative Member of Parliament (MP) Martin Stevens on 10 January that year. In a seat that had changed hands on a few occasions, it was won by Nick Raynsford of Labour, only to be regained by the Tories in the general election 14 months later.

The Hindawi affair was a failed attempt to bomb El Al Flight 016, from London to Tel Aviv in April 1986 by Nezar Nawwaf al-Mansur al-Hindawi, a Jordanian.

The Inner London Education Authority election, 1986 was held on 8 May in order to elect 58 members to the Inner London Education Authority (ILEA). Constituents of the 29 seats of inner London elected two members each.

Susannah Jane Lamplugh was a British estate agent reported missing on 28 July 1986 in Fulham, London, England.

Miss World 1986, the 36th edition of the Miss World pageant, was held on 13 November 1986 at the Royal Albert Hall in London, United Kingdom. The winner was Giselle Laronde from Trinidad and Tobago. She was crowned by Miss World 1985, Hólmfríður Karlsdóttir of Iceland. Runner-up was Pia Rosenberg Larsen representing Denmark and third was Chantal Schreiber from Austria.

The Museum of London documents the history of the UK's capital city from prehistoric to modern times. It is located in the City of London on the London Wall, close to the Barbican Centre and is part of the Barbican complex of buildings created in the 1960s and 1970s to redevelop a bomb-damaged area of the city.
Twelve Responses to Tragedy, or the Yalta Memorial, is a memorial located in the Yalta Memorial Garden on Cromwell Road in South Kensington in west London. The memorial commemorates people displaced as a result of the Yalta Conference at the conclusion of the Second World War. Created by the British sculptor Angela Conner, the work consists of twelve bronze busts atop a stone base. The memorial was dedicated in 1986 to replace a previous memorial from 1982 that had been repeatedly damaged by vandalism.

The Wapping dispute was a lengthy failed strike by print workers in London in 1986.

The wedding of Prince Andrew and Sarah Ferguson was held on 23 July 1986, at Westminster Abbey in London, England.

The 1986 World Chess Championship was played between Anatoly Karpov and Garry Kasparov in London and Leningrad from July 28 to October 8, 1986. Kasparov won. Anatoly Karpov was already assured of this rematch during his previous year's match, which was won by Garry Kasparov.

The Yalta Memorial Garden is a small triangular garden in South Kensington, west London, SW7. It is 0.0417 hectares in size. The garden contains Twelve Responses to Tragedy, a memorial located that commemorates people displaced as a result of the Yalta Conference at the conclusion of World War II. The memorial was dedicated in 1986 to replace a previous memorial dedicated in 1982 that had been repeatedly damaged by vandalism.