

The Armstrong Whitworth Atlas was a British single-engine biplane designed and built by Armstrong Whitworth Aircraft. It served as an army co-operation aircraft for the Royal Air Force (RAF) in the 1920s and 1930s. It was the first purpose-designed aircraft of the type to serve with the RAF.
Variants
- Atlas I Army co-operation aircraft - 271 built for the RAF.
- Atlas Trainer Dual-control trainer version of Atlas I - 175 built.
- Atlas II Cleaned up, more powerful version, powered by 525 hp (391 kW) Armstrong Siddeley Panther. Rejected in favour of Audax by RAF. 15 built for Kwangsi Air Force, China.
- Ajax minor differences from Atlas I - 4 built for RAF.
- Aries improved Atlas I with easier access for maintenance and increased dimensions - one built
- EAF Atlas Greek lower-cost version (main differences in wing structure, engine and propeller) - 10 built by EAF (KEA) after 1931.