3 May 1990 1994 → 38.3% 37.8% 14 12 | 2 October 1983 11 February 1975 0.9% 2.0% 1 1 | |
 | ||
Local government elections took place in London, and some other parts of the United Kingdom on Thursday 3 May 1990.
All London borough council seats were up for election. The previous Borough elections in London were in 1986.
The elections saw a poor result for the recently formed Liberal Democrats, with the party losing 10% of its vote and 20 council seats. This decline was accompanied by success for the Conservatives, who gained 46 councillors and 1 council, while Labour lost 32 council seats and 1 council.
The local elections also saw a surge in support for the Green Party, which had won 15% of the vote in the European Elections the previous year. Despite winning 6% of the London-wide vote, the party failed to win a single council seat. The 1990 result was the best popular vote result in the party's history, and the party would not exceed this result until the local elections of 2006.