- James Yeh
- Jamol Pender
- Jan A. Van Mieghem
- Jan de Wit Company
- Jan Fransoo
- Jan Karel Lenstra
- Jan M. Chaiken
- Jan Roelf Bult
- Jan Vlachy
- Jan-Benedict E.M. Steenkamp
- Jan-Rasmus Künnen
- Jane Ammons
- Jane Yi Jiang
- Janet Lowe
- Janis Braze
- Janne Gustafsson
- Jannis Schuecker
- Janny Leung
- Janos Csirik
- János D. Pintér
