The Brocklebank 15HP was an automobile which was produced between 1926 and 1929.

The car was fitted with a 2051cc six cylinder engine of Brocklebank's own design. The car was advertised as 'Birmingham's answer to the American challenge', and featured various American components, such as Warner gearboxes and axles and Lockheed brakes. Cars were shown at the London Motor Shows in 1927 and 1928 and body styles included 4 door saloons, Weymann fabric saloons, and open 2 and 4 seaters.

Production estimates varying from 350 to 600. The majority of Brocklebank production was exported to various countries of the British Empire. Australia was very found the car with a high number being exported there.

Today 2 cars still exist.