- Gary Smalls
- Gary Smart
- Gary Smejkal
- Gary Smith
- Gary Smith
- Gary Smith
- Gary Smith
- Gary Smith Blues Band
- Gary Smulyan
- Gary Smulyan Quartet
- Gary Smulyan Quintet
- Gary Snider
- Gary Snipes
- Gary Snyder
- Gary Sparks
- Gary Speed
- Gary Spencer
- Gary Spencer
- Gary "Sphinx" Samuels
- Gary Sredzienski
- Gary Sredzienski & The Serfs
- Gary St. Clair
- Gary Stadler
- Gary Stadler and Wendy Rule
- Gary Steadman & Enchanted Mountain Boys
- Gary Steigerwalt
- Gary Stephen Sloyer
- Gary Stevens
- Gary Stewart
- Gary Stier
- Gary Stiliano
- Gary Stites
- Gary Stockdale
- Gary Stoddard
- Gary Stroutsos
- Gary Stryder
- Gary Stuart
- Gary Stuart King & Amigos
- Gary Stucka
- Gary Swan
- Gary Swindell Jr.
- Gary Szymik
- Gary T
- Gary T
- Gary T. 502
- Gary T. Bell
- Gary Talley
- Gary Tanin
- Gary Taylor
- Gary Taylor
- Gary Taylor
- Gary Teal
- Gary Terzian
- Gary Tesca Orchestra
- Gary Thain
- Gary & The Detonators
- Gary the Happy Pirate
- Gary & The Knightlites
- Gary & the Moodswingers
- Gary & the Stereos
- Gary Thies
- Gary Thomas
- Gary Thomas
- Gary Thurmond/Stephen Helton
- Gary Tibbs
- Gary Todd
- Gary Tole
- Gary Tole
- Gary Tole
- Gary Tollett
- Gary Toms Empire
- Gary Toms Empire
- Gary Tong
- Gary Trace
- Gary Tracy
- Gary Trinklein
- Gary Trosclair
- Gary Troxel
- Gary Trudeau
- Gary Tu
- Gary Tutalo
- Gary Twinn
- Gary Upton