Attacks on the London Underground

This is a list of deliberate attacks on the infrastructure, staff or passengers of the London Underground that have caused considerable damage, injury or death.

IRA attacks between 1939 and 1993
In 1969, the Irish Republican Army (1922–1969), split into the Official Irish Republican Army (active until declaring 1972 ceasefire) and the Provisional Irish Republican Army (active until declaring a 1997 ceasefire). All were Irish Republican paramilitary organizations which sought to end Northern Ireland's status within the United Kingdom and bring about a United Ireland through armed force. On a number of occasions the different iterations of IRA attacked the London Underground.

2005 terrorist attacks
In 2005 two groups of Islamist extremists attacked a number of underground lines and bus routes in London.