Ralph Hooper (1926-), aeronautical engineer, was the first designer of the Hawker Siddeley P.1127, the vertical-take-off-and-landing aeroplane which evolved into the revolutionary Harrier jump-jet. During his later career with Hawker Siddeley, which became part of British Aerospace, he oversaw a number of other projects, including the P1182 that developed into the highly successful Hawk jet trainer, and played an activerole in selling these aircraft overseas. He retired in 1985, following the cancellation of the P1216, a supersonic version of the Harrier.
- Birth name: Ralph Hooper
- Born: 1926 Essex, UK
- Occupation: Aeronautical engineer
- Disciplines: Aeronautical Engineering
- Education: University College, Hull; College of Aeronautics, Cranfield