- Robert Schönfeld
- Robert Sciaraffo
- Robert Seber
- Robert Segessenmann
- Robert Seidel, Q.C.
- Robert Seidler
- Robert Sell
- Robert Seminara
- Robert Shan
- Robert Shannon
- Robert Sharpe
- Robert Shaw
- Robert Sheehy
- Robert Sheehy, Jr
- Robert Shen
- Robert Shepler
- Robert Shilton
- Robert Shmalo
- Robert Shober
- Robert Shuford
- Robert Siegel
- Robert Simon
- Robert Singer
- Robert Sires
- Robert Skandalaris
- Robert Slinkard
- Robert Small
- Robert Smith
- Robert Smith
- Robert Smith
- Robert Smith
- Robert Smith
- Robert Smith
- Robert Smith
- Robert Smith
- Robert Snape
- Robert Snyder
- Robert Sorrell
- Robert Spass
- Robert Speer