The Bristol Coanda Monoplanes were a series of monoplane trainers designed by the Romanian designer Henri Coandă for the British company British and Colonial Aeroplane Company.

Henri Marie Coandă was a Romanian inventor, aerodynamics pioneer, and builder of an experimental aircraft, the Coandă-1910, which never flew. He invented a great number of devices, designed a "flying saucer" and discovered the Coandă effect of fluid dynamics.