 Tomasz Sikora | Biatlón |
 Haralds Silovs | Patinadores |
 Danny Silva | Skiing |
 Ben Sim | Skiing |
 Maria Belen Simari Birkner | Skiing |
| Macarena Simari Birkner | Skiing |
| Cristian Javier Simari Birkner | Skiing |
 Chiara Simionato | Patinadores |
 Meaghan Simister | Luge |
 Matthias Simmen | Biatlón |
| Georgia Simmerling | Skiing |
 Dusan Simocko | Biatlón |
| Davide Simoncelli | Skiing |
 Timo Simonlatser | Skiing |
 Rebecca Sinclair | Skiing |
 Petr Sindelar | Skiing |
| Jana Sisajova | Luge |
 Stian Sivertzen | Skiing |
| Eva Skalnikova | Skiing |
 Nadezhda Skardino | Biatlón |
| Blake Skjellerup | Patinadores |
 Ivan Skobrev | Patinadores |
| Vibeke Skofterud | Skiing |
| Timofey Skopin | Patinadores |
 Anastasiya Skryabina | Skiing |