The 1984–1985 United Kingdom miners' strike was a major industrial action within the British coal industry in an attempt to prevent colliery closures. It was led by Arthur Scargill of the National Union of Mineworkers (NUM) against the National Coal Board (NCB), a government agency. Opposition to the strike was led by the Conservative government of Prime Minister Margaret Thatcher, who wanted to reduce the power of the trade unions.

Arthur Scargill is a British trade unionist who was President of the National Union of Mineworkers (NUM) from 1982 to 2002. He is best known for leading the 1984–1985 UK miners' strike, a major event in the history of the British labour movement.