| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
|
| S |
| Name | Country | Plays |
| Andre Sa | Brazil | Right Handed |
| Ivan Sabanov | Croatia | Right Handed |
| Matej Sabanov | Croatia | Right Handed |
| Roman Safiullin | Russia | Right Handed |
| Vaclav Safranek | Czech Republic | Right Handed |
| Mohamed Safwat | Egypt | Right Handed |
| Pedro Sakamoto | Brazil | Right Handed |
| Gleb Sakharov | France | Right Handed |
| Joe Salisbury | England | Right Handed |
| Jordi Samper-Montana | Spain | Left Handed |
| Manuel Sanchez | Mexico | Right Handed |
| Antonio Sancic | Croatia | Right Handed |
| Tennys Sandgren | United States | Right Handed |
| Akira Santillan | Australia | Right Handed |
| Raymond Sarmiento | United States | Right Handed |
| Alexander Satschko | Germany | Right Handed |
| Luke Saville | Australia | Right Handed |
| Brayden Schnur | Canada | Right Handed |
| Max Schnur | United States | Right Handed |
| Diego Schwartzman | Argentina | Right Handed |
| Dudi Sela | Israel | Right Handed |
| Andreas Seppi | Italy | Right Handed |
| Christian Seraphim | Germany | Right Handed |
| Nino Serdarusic | Croatia | Right Handed |
| Aldin Setkic | Bosnia-Herzegovina | Right Handed |
| Thiago Seyboth Wild | Brazil | Right Handed |
| Adil Shamasdin | Canada | Right Handed |
| Radoslav Shandarov | Bulgaria | Right Handed |
| Vasil Shandarov | Bulgaria | Right Handed |
| Ryan Shane | United States | Right Handed |
| Denis Shapovalov | Canada | Left Handed |
| Divij Sharan | India | Left Handed |
| Igor Sijsling | Netherlands | Right Handed |
| Andreas Siljestrom | Sweden | Right Handed |
| Frederico Ferreira Silva | Portugal | Left Handed |
| Gilles Simon | France | Right Handed |
| Fred Simonsson | Sweden | Right Handed |
| Jannik Sinner | Italy | Right Handed |
| Artem Sitak | New Zealand | Right Handed |
| Franko Skugor | Croatia | Right Handed |
| Ken Skupski | England | Left Handed |
| Neal Skupski | England | Right Handed |
| Jasper Smit | Netherlands | Right Handed |
| John-Patrick Smith | Australia | Left Handed |
| Keegan Smith | United States | Right Handed |
| Roy Smith | United States | Left Handed |
| Glenn Smits | Netherlands | Right Handed |
| Tim Smyczek | United States | Right Handed |
| Bruno Soares | Brazil | Right Handed |
| Eric Sock | United States | Right Handed |
| Jack Sock | United States | Right Handed |
| Go Soeda | Japan | Right Handed |
| Lorenzo Sonego | Italy | Right Handed |
| Evan Song | United States | Right Handed |
| Joao Sousa | Portugal | Right Handed |
| Pedro Sousa | Portugal | Right Handed |
| Joao Souza | Brazil | Right Handed |
| Sergiy Stakhovsky | Ukraine | Right Handed |
| Jose Statham | New Zealand | Right Handed |
| Rubin Statham | New Zealand | Right Handed |
| Cedrik-Marcel Stebe | Germany | Left Handed |
| Radek Stepanek | Czech Republic | Right Handed |
| George Stoupe | New Zealand | Right Handed |
| Jan-Lennard Struff | Germany | Right Handed |
| Constantin Sturdza | Switzerland | |
| Yuichi Sugita | Japan | Right Handed |
| Fajing Sun | China | Right Handed |
| Zachary Svajda | United States | Right Handed |
