Members of the Provisional Irish Republican Army detonated two bombs in Hyde Park and Regent's Park in London, killing eleven British Army personnel and seven horses.

The Provisional Irish Republican Army, officially known as the Irish Republican Army and informally known as the Provos, was an Irish republican paramilitary force that sought to end British rule in Northern Ireland, facilitate Irish reunification and bring about an independent republic encompassing all of Ireland. It was the most active republican paramilitary group during the Troubles. It argued that the all-island Irish Republic continued to exist, and it saw itself as that state's army, the sole legitimate successor to the original IRA from the Irish War of Independence. It was designated a terrorist organisation in the United Kingdom and an unlawful organisation in the Republic of Ireland, both of whose authority it rejected.

The Hyde Park and Regent's Park bombings were carried out on 20 July 1982 in London, England. Members of the Provisional Irish Republican Army (IRA) detonated two improvised explosive devices during British military ceremonies in Hyde Park and Regent's Park, both in central London.

Hyde Park is a 350-acre (140-hectare), historic Grade I-listed urban park in Westminster, Greater London. A Royal Park, it is the largest of the parks and green spaces that form a chain from Kensington Palace through Kensington Gardens and Hyde Park, via Hyde Park Corner and Green Park, past Buckingham Palace to St James's Park. Hyde Park is divided by the Serpentine and the Long Water lakes.

Regent's Park is one of the Royal Parks of London. It occupies 410 acres (170 ha) in north-west Inner London, administratively split between the City of Westminster and the Borough of Camden. In addition to its large central parkland and ornamental lake, it contains various structures and organizations both public and private, generally on its periphery, including Regent's University and London Zoo.