An underground fire killed 31 people at King's Cross St Pancras tube station in London.

The King's Cross fire occurred in 1987 at King's Cross St Pancras tube station in London, England, causing 31 fatalities. It began under a wooden escalator before spreading into the ticket hall in a flashover.

King's Cross St Pancras is a London Underground station on Euston Road in the London Borough of Camden, Central London. It serves King's Cross and St Pancras main line stations in fare zone 1, and is served by six lines: Circle, Hammersmith & City, Metropolitan, Northern, Piccadilly and Victoria. The station was one of the first to open on the network. As of 2023, it is the most used station on the network for passenger entrances and exits combined.