Armstrong
- 6469 Armstrong
- Archer & Armstrong
- Armstrong (DuckTales episode)
- Armstrong (automobile)
- Armstrong (content management system)
- Armstrong (crater)
- Armstrong (surname)
- Armstrong Atlantic State University
- Armstrong Audio
- Armstrong County, Pennsylvania
- Armstrong County, Texas
- Armstrong Creek (disambiguation)
- Armstrong Flight Research Center
- Armstrong Flooring
- Armstrong Group of Companies
- Armstrong Gun
- Armstrong Lake (Blue Earth County, Minnesota)
- Armstrong Reef
- Armstrong Telephone Company
- Armstrong Tools
- Armstrong Township, Indiana County, Pennsylvania
- Armstrong Township, Lycoming County, Pennsylvania
- Armstrong Township, Pennsylvania (disambiguation)
- Armstrong Township, Vanderburgh County, Indiana
- Armstrong Tunnel
- Armstrong Whitworth
- Armstrong Whitworth Aircraft
- Armstrong Whitworth Whitley
- Armstrong Williams
- Armstrong World Industries
- Armstrong investment managers
- Armstrong's axioms
- Armstrong, British Columbia
- Armstrong, California
- Armstrong, Delaware
- Armstrong, Florida
- Armstrong, Georgia
- Armstrong, Illinois
- Armstrong, Indiana
- Armstrong, Iowa
- Armstrong, Minnesota
- Armstrong, Missouri
- Armstrong, Oklahoma
- Armstrong, Ontario
- Armstrong, Ontario (Indian settlement)
- Armstrong, Santa Fe
- Armstrong, Texas
- Armstrong, Thunder Bay District, Ontario
- Armstrong, Victoria
- Armstrong, Wisconsin
- Armstrong-CCM Motorcycles
- Billie Joe Armstrong
- Clan Armstrong
- George Armstrong Custer
- Lance Edward Armstrong
- Louis Armstrong
- Louis Armstrong New Orleans International Airport
- Neil Armstrong
- The Armstrongs
- Tim Armstrong
- Ångström (disambiguation)