| Name | Years | Occupation(s) | Inventions / accomplishments | References |
|---|
| Adkins, Rodney | 1958– | Electrical engineer | First African American to serve as a senior vice president at IBM, helped develop IBM ThinkPad |
| Alcorn, George Edward Jr. | 1940– | Physicist, inventor | Invented a method of fabricating an imaging X-ray spectrometer |
| Alexander, Archie | 1888–1958 | Civil engineer | Responsible for the construction of many roads and bridges, including the Whitehurst Freeway, the Tidal Basin Bridge, and an extension to the Baltimore-Washington Parkway. |
| Ammons, Virgie | December 29, 1908 – July 12, 2000 | Inventor | Filed the fireplace throat damper patent on August 6, 1974. |
| Amos, Harold | 1918–2003 | Microbiologist | First African-American department chair at Harvard Medical School |
| Andrews, James J. | 1930–1998 | Mathematician | Put forth the Andrews–Curtis conjecture in group theory with Morton L.
Curtis, still unsolved |