- Tuo Zhao
- Tuomas J. Lahtinen
- Tuomas Sandholm
- Turgay Ayer
- Twan Dollevoet
- Tyler Dick
- Tyler Perini
- U. Narayan Bhat
- U.S. Air Force
- U.S. Air Force Academy, Operations Research Program
- U.S. Census Bureau
- U.S. Centers for Disease Control and Prevention (CDC)
- U.S. Department of Housing & Urban Development
- U.S. Environmental Protection Agency
- Uday Apte
- Uday S. Karmarkar
- Uğur Eliiyi
- Uli Chi
- Ulrich Derigs
- Ulrich W. Thonemann
