- Arizona State University Student Chapter
- Arjun Madhavan
- Arkadi Nemirovski
- Armagan Bayram
- Arman Sabaaghi
- Armand B. Weiss
- Armand Zakarian
- Arnd Huchzermeier
- Arne Lokketangen
- Arnie Greenland
- Arnold (Arnie) Greenland
- Arnold Greenfield
- Arnold I. Barnett
- Arnold Maltz
- Arnold Reisman
- Arnoud V. den Boer
- Arpan Rijal
- Artem Timoshenko
- Arthur A. Brown
- Arthur C. Hsu
