The Battle of Cable Street was a series of clashes that took place at several locations in the East End of London, most notably Cable Street, on Sunday 4 October 1936. It was a clash between the Metropolitan Police, sent to protect a march by members of the British Union of Fascists led by Sir Oswald Mosley, and various anti-fascist demonstrators including local trade unionists, communists, anarchists, British Jews, and socialist groups. The anti-fascist counter-demonstration included both organised and unaffiliated participants.

Cable Street is a road in the East End of London, England, with several historic landmarks nearby. It was made famous by the Battle of Cable Street in 1936.