- 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
- Robert Spellman
- Robert Spellman
- Robert Sperry
- Robert Spies
- Robert Spigner
- Robert Spittler
- Robert Sroka
- Robert Stanko
- Robert Stanley
- Robert Stanley
- Robert Starnes
- Robert Stead