Bristol Aero Engines was a British company established in the early 20th century, primarily focused on the design and manufacture of aircraft engines. It played a significant role in the development of aviation technology during both World Wars, contributing to various military and civilian aircraft. The company was known for its innovative engine designs, including the Bristol Hercules and Bristol Centaurus engines, which powered numerous aircraft. In 1960, Bristol Aero Engines merged with other companies to form Bristol Siddeley Engines, which later became part of Rolls-Royce Holdings.