- Curtiss B. Cook
- Cynthia Barnhart
- Cynthia Rudin
- Cynthia Zeng
- Cyrus Derman
- D J Chung
- D. J. (DONGJUN) WU
- D. La-ornual
- D. Nace
- D. Scott Hunter
- D. Warner North
- D.P. Coveleski
- Daan Rutten
- Dabeen Lee
- Dae Ryun Chang
- DaimlerChrysler (Daimler AG) & J.D. Power and Associates
- Dajon Wiafe
- Dale Raar
- Dali Wang
- Dali Zhang
