Players ATPWTA
| Name | Country |
|---|---|
| Dominic Stricker | SUI |
| Ben Stride | GBR |
| Malte Stropp | GER |
| Jan-Lennard Struff | GER |
| Eduardo Struvay | COL |
| Francisco Stuardo | CHI |
| Mac Styslinger | USA |
| Agustin Suarez Gonzalez | ARG |
| Dominik Suc | CZE |
| Luka Sucevic | SRB |
| Jakob Sude | GER |
| Yuichi Sugita | JPN |
| Vincent Suillerot | FRA |
| Tudor Sulea | ROU |
| Ziad Sultan | KUW |
| Khumoun Sultanov | UZB |
| Sefa Suluoglu | TUR |
| Davy Sum | FRA |
| Fajing Sun | CHN |
| Dmitry Surchenko | RUS |
| Gokul Suresh | IND |
| Manish Sureshkumar | IND |
| Arthur Surreaux | FRA |
| David Agung Susanto | INA |
| Ko Suzuki | JPN |
| Takao Suzuki | JPN |
| Zachary Svajda | USA |
| Daniel Svensson | SWE |
| Dane Sweeny | AUS |
| Ryan Sweeting | USA |
| Syed Mohd Agil Syed Naguib | MAS |
| Andras Szekely | ROU |
| David Szintai | HUN |
| Mateusz Szmigiel | POL |
| Mikolaj Szmyrgala | POL |
| Bojan Szumanski | POL |
| Maxime Tabatruong | FRA |
| Carlos Taberner | ESP |
| Alejandro Tabilo | CAN |
| Keivon Tabrizi | SUI |
| Shota Tagawa | JPN |
| Jason Tahir | USA |
| Arturo Tajonar | MEX |
| Koki Takada | JPN |
| Yusuke Takahashi | JPN |
| Yusuke Takemoto | JPN |
| Shunrou Takeshima | JPN |
| Kento Takeuchi | JPN |
| Daniel Tamir | ISR |
| Kristjan Tamm | EST |