- Retsef Levi
- Reuven R. Levary
- Reuven Rubinstein
- Rex Mazonowicz
- Reza Ahmadi
- Reza Mohammad
- Reza Yaesoubi
- Rhenania
- Rhonda Righter
- Ricardo Curiel
- Ricardo Ernst
- Ricardo Fiorillo
- Rice University Student Chapter
- Rich Davidson
- Rich Wong
- Richa Agarwal
- Richard A. Milliman
- Richard A. Stroud
- Richard Bellman
- Richard Benanti
