Bristol Siddeley

Bristol Siddeley Engines Limited
Industry	Aerospace, engineering
Predecessor	Bristol Aero-Engines division of Bristol Aeroplane Company; Armstrong Siddeley Motors Limited;
Founded	1959 by merger
Defunct	1966
Fate	Purchased and merged into Rolls-Royce
Successor	Rolls-Royce Limited
Headquarters	Filton, Bristol, United Kingdom
Products	Aircraft engines

Bristol Siddeley Engines Ltd (BSEL) was a British aero engine manufacturer. The company was formed in 1959 by a merger of Bristol Aero-Engines Limited and Armstrong Siddeley Motors Limited. In 1961 the company was expanded by the purchase of the de Havilland Engine Company and the engine division of Blackburn Aircraft. Bristol Siddeley was purchased by Rolls-Royce Limited in 1966.