- Saarbrücken (Football)
- Sabah FK (Football)
- Sabail (Football)
- Sacramento Kings (Basketball)
- Sacramento Republic FC (Football)
- Sacramento River Cats (Baseball)
- Sacramento State (American Football)
- Sacramento State (Basketball)
- Sacred Heart (Basketball)
- Sacred Heart (American Football)
- Saint Francis University (American Football)
- Saint Francis University (Basketball)
- Saint Louis (Basketball)
- Saint Lucia Kings (Cricket)
- Saint Mary's (Basketball)
- Saint Peter's (Basketball)
- Sale Jets (Rugby Union)
- Sale Sharks (Rugby Union)
- Sale Sharks Women (Rugby Union)
- Salem Spartans (Cricket)
- Salernitana (Football)
- Salford City (Football)
- Salford Red Devils (Rugby League)
- Saltash United Women (Football)
- Saltdean United Women (Football)
- Sam Bowen (Boxing)
- Sam Eggington (Boxing)
- Sam Goodman (Boxing)
- Sam Houston State (American Football)
- Sam Maxwell (Boxing)
- Sam Noakes (Boxing)
- Sam O'maison (Boxing)
- Samford (American Football)
- Samford (Basketball)
- Samoa (Netball)
- Samoa (Rugby Union)
- Samoa (Rugby League)
- Samoa (Cricket)
- Samoa (Football)
- Samoa Women (Cricket)
- Samoa Women (Rugby Union)
- Samoa Women Under-19s (Cricket)
- Samp Army (Cricket)
- Sampdoria (Football)
- Samsunspor (Football)
- Samuel Vargas (Boxing)
- San Antonio Brahmas (American Football)
- San Antonio Spurs (Basketball)
- San Diego FC (Football)
- San Diego Legion (Rugby Union)
- San Diego Padres (Baseball)
- San Diego State (American Football)
- San Diego State (Basketball)
- San Diego Wave FC (Football)
- San Francisco (Basketball)
- San Francisco 49ers (American Football)
- San Francisco Giants (Baseball)
- San Francisco Unicorns (Cricket)
- San Jose Earthquakes (Football)
- San Jose Sharks (Ice Hockey)
- San Jose State (American Football)
- San Lorenzo (Basketball)
- San Marino (Football)
- San Marino U21 (Football)
- Sandefjord (Football)
- Sandgate (Australian Rules Football)
- Sandor Martin (Boxing)
- Sandvikens IF (Football)
- Sandy Ryan (Boxing)
- Sant Julia (Football)
- Santa Clara (Football)
- Santos Laguna (Football)
- Santos Reyes (Boxing)
- São Paulo FC (Football)
- Sao Tome e Principe (Football)
- Sapphires Women (Cricket)
- Saracens (Rugby Union)
- Saracens Sports Club (Cricket)
- Saracens Storm (Rugby Union)
- Saracens Women (Rugby Union)
- Sarpsborg 08 (Football)
- Saskatchewan Roughriders (Canadian Football)
- Saski Baskonia (Basketball)
- Sassuolo (Football)
- Sauchie Juniors (Football)
- Saudi Arabia (Football)
- Saudi Arabia (Handball)
- Saudi Arabia (Cricket)
- Saudi Arabia Women (Cricket)
- Saurashtra (Cricket)
- Saurashtra Women (Cricket)
- Savannah Marshall (Boxing)
- SC Bern (Ice Hockey)
- SC Braga (Football)
- SC Covilhã (Football)
- SC Dnipro-1 (Football)
- SC Farense (Football)
- SC Freiburg (Football)
- SC Heerenveen (Football)
- SC Internacional (Football)
- SC Paderborn 07 (Football)
- SC São João de Ver (Football)
- Scarborough Athletic (Football)
- Scarlets (Rugby Union)
- Scorchers Women (Cricket)
- Scotland (Cricket)
- Scotland (Rugby Union)
- Scotland (Football)
- Scotland (Netball)
- Scotland (Rugby League)
- Scotland A (Rugby Union)
- Scotland U20 (Rugby Union)
- Scotland U21 (Football)
- Scotland Under-19s (Cricket)
- Scotland Women (Football)
- Scotland Women (Rugby Union)
- Scotland Women (Cricket)
- Scotland Women (Lacrosse)
- Scotland Women Under-19s (Cricket)
- Scott Fitzgerald (Boxing)
- SCU Torreense (Football)
- Scunthorpe United (Football)
- SD Huesca (Football)
- Sea Eagles (Rugby League)
- Sean Monaghan (Boxing)
- Seattle Kraken (Ice Hockey)
- Seattle Mariners (Baseball)
- Seattle Orcas (Cricket)
- Seattle Reign FC (Football)
- Seattle Sea Dragons (American Football)
- Seattle Seahawks (American Football)
- Seattle Seawolves (Rugby Union)
- Seattle Sounders FC (Football)
- Seattle Storm (Basketball)
- Sebastian Formella (Boxing)
- Sebastian Fundora (Boxing)
- Sebastianites Cricket and Athletic Club (Cricket)
- Sedgley & Gornal United Women (Football)
- Sefer Seferi (Boxing)
- Seiya Tsutsumi (Boxing)
- Senegal (Football)
- Senegal (Basketball)
- Sepsi Sfântu Gheorghe (Football)
- Serbia (Football)
- Serbia (Tennis)
- Serbia (Basketball)
- Serbia (Volleyball)
- Serbia (Handball)
- Serbia (Rugby League)
- Serbia U21 (Football)
- Serbia Women (Football)
- Serbia Women (Basketball)
- Serbia Women (Volleyball)
- Serbia Women (Cricket)
- Sergey Kovalev (Boxing)
- Sergey Lipinets (Boxing)
- Sergiy Derevyanchenko (Boxing)
- Servette (Football)
- Servette FC Chênois Féminin (Football)
- Services (Cricket)
- Seton Hall (Basketball)
- Sevenoaks Suns (Basketball)
- Severn Stars (Netball)
- Sevilla (Football)
- Seychelles (Football)
- Seychelles (Cricket)
- SFA (American Football)
- Shabaz Masoud (Boxing)
- Shakan Pitters (Boxing)
- Shakhtar Donetsk (Football)
- Shakhter Karagandy (Football)
- Shakhter Soligorsk (Football)
- Shakur Stevenson (Boxing)
- Shamrock Rovers (Football)
- Shandong Taishan (Football)
- Shanghai Port (Football)
- Shanghai Shenhua (Football)
- Shaq's OGs (Basketball)
- Sharjah (Cricket)
- Sharjah Warriorz (Cricket)
- Sharks (Rugby Union)
- Sharks (Rugby League)
- Sharks (Basketball)
- Sharks Women (Rugby League)
- Sharks XI (Cricket)
- Shavkat Rakhimov (Boxing)
- Shawn Porter (Boxing)
- Shefat Isufi (Boxing)
- Sheffield Eagles (Rugby League)
- Sheffield FC Women (Football)
- Sheffield Hatters (Basketball)
- Sheffield Sharks (Basketball)
- Sheffield Steelers (Ice Hockey)
- Sheffield United (Football)
- Sheffield United Women (Football)
- Sheffield Wednesday (Football)
- Sheikh Jamal Dhanmondi Club (Cricket)
- Shelbourne (Football)
- Shenzen (Football)
- Shenzhen Peng City F.C. (Football)
- Sheppey United (Football)
- Sherborne Town Ladies (Football)
- Sheriff Tiraspol (Football)
- Shinepukur Cricket Club (Cricket)
- Shivamogga Lions (Cricket)
- Shivamogga Strikers (Cricket)
- Shkendija Tetovo (Football)
- Shkupi (Football)
- Shohjahon Ergashev (Boxing)
- Shrewsbury Town (Football)
- Shrewsbury Town Women (Football)
- Shropshire (Cricket)
- Shropshire Women (Cricket)
- Shuichiro Yoshino (Boxing)
- Sialkot Region (Cricket)
- Siechem Madurai Panthers (Cricket)
- Sierra Leone (Football)
- Sierra Leone Women (Cricket)
- Sikkim (Cricket)
- Sikkim Women (Cricket)
- Sileks (Football)
- Silkeborg IF (Football)
- Sindh (Cricket)
- Sindh 2nd XI (Cricket)
- Singapore (Netball)
- Singapore (Football)
- Singapore (Cricket)
- Singapore Under-19s (Cricket)
- Singapore Women (Cricket)
- Sinhalese Sports Club (Cricket)
- Sint Truiden VV (Football)
- Sirens FC (Football)
- Siroki Brijeg (Football)
- SIU Edwardsville (Basketball)
- Sivasspor (Football)
- Sivenathi Nontshinga (Boxing)
- SJK (Football)
- SK Dynamo České Budějovice (Football)
- SK Sigma Olomouc (Football)
- SK Slovan Bratislava (Football)
- Skelmersdale Utd (Football)
- SKN St. Pölten Women (Football)
- Skövde AIK (Football)
- SL Benfica B (Football)
- Slavia Prague (Football)
- Slavia Prague Women (Football)
- Slavia Sofia (Football)
- SLC Blues (Cricket)
- SLC Greens (Cricket)
- SLC Greys (Cricket)
- SLC Reds (Cricket)
- SLC Yellow (Cricket)
- Sliema Wanderers (Football)
- Sligo (Hurling)
- Sligo (Gaelic Football)
- Sligo Rovers (Football)
- Slough Town (Football)
- Slovakia (Football)
- Slovakia (Tennis)
- Slovakia (Ice Hockey)
- Slovakia (Handball)
- Slovakia U21 (Football)
- Slovakia Women (Football)
- Slovan Liberec (Football)
- Slovenia (Football)
- Slovenia (Tennis)
- Slovenia (Volleyball)
- Slovenia (Basketball)
- Slovenia (Handball)
- Slovenia (Ice Hockey)
- Slovenia U21 (Football)
- Slovenia Women (Football)
- Slovenia Women (Basketball)
- SMU (American Football)
- Sochaux (Football)
- Sofiane Takoucht (Boxing)
- Solihull Ladies (Football)
- Solihull Moors (Football)
- Solihull Moors Women (Football)
- Solomon Islands (Football)
- Somalia (Football)
- Somerset (Cricket)
- Somerset 2nd XI (Cricket)
- Somerset Women (Cricket)
- SønderjyskE (Football)
- Sonny Fredrickson (Boxing)
- Sopron Basket (Basketball)
- South Adelaide (Australian Rules Football)
- South Africa (Cricket)
- South Africa (Tennis)
- South Africa (Netball)
- South Africa (Rugby Union)
- South Africa (Football)
- South Africa (Hockey)
- South Africa (Rugby League)
- South Africa A (Cricket)
- South Africa A (Rugby Union)
- South Africa Champions (Cricket)
- South Africa Emerging Players (Cricket)
- South Africa Emerging Players Women (Cricket)
- South Africa Invitational (Rugby Union)
- South Africa Legends (Cricket)
- South Africa Masters (Cricket)
- South Africa Select XV (Rugby Union)
- South Africa U20 (Rugby Union)
- South Africa Under-19s (Cricket)
- South Africa Under-19s Emerging (Cricket)
- South Africa Under-19s Invitation XI (Cricket)
- South Africa Women (Cricket)
- South Africa Women (Football)
- South Africa Women (Rugby Union)
- South Africa Women (Hockey)
- South Africa Women Under-19s (Cricket)
- South Africa Women XI (Cricket)
- South Africa XV (Rugby Union)
- South African Invitation XI (Cricket)
- South Alabama (American Football)
- South Australia (Cricket)
- South Australia Women (Cricket)
- South Carolina (American Football)
- South Carolina (Basketball)
- South Carolina State (American Football)
- South Dakota (American Football)
- South Dakota (Basketball)
- South Dakota State (American Football)
- South Dakota State (Basketball)
- South East Melbourne Phoenix (Basketball)
- South East Stars (Cricket)
- South Florida (American Football)
- South Florida (Basketball)
- South Fremantle (Australian Rules Football)
- South Hobart (Football)
- South Island Women (Cricket)
- South Korea (Baseball)
- South Korea (Handball)
- South Korea (Volleyball)
- South Korea Women (Basketball)
- South Korea Women (Cricket)
- South Logan (Rugby League)
- South London Women (Football)
- South Melbourne FC (Football)
- South Shields (Football)
- South Shields Women (Football)
- South Sudan (Football)
- South Sudan (Basketball)
- South Western Districts (Cricket)
- South Western Districts Women (Cricket)
- South Zone (Cricket)
- South Zone Women (Cricket)
- Southampton (Football)
- Southampton F.C. Women (Football)
- Southampton U21 (Football)
- Southampton Women's FC (Football)
- Southeast Missouri State (American Football)
- Southeast Missouri State (Basketball)
- Southeastern Louisiana (American Football)
- Southeastern Louisiana (Basketball)
- Southeastern University Fire (Baseball)
- Southend United (Football)
- Southern Brave (Cricket)
- Southern California (American Football)
- Southern Illinois (American Football)
- Southern Miss (American Football)
- Southern Punjab (Cricket)
- Southern Punjab 2nd XI (Cricket)
- Southern Rocks (Cricket)
- Southern Steel (Netball)
- Southern Super Stars (Cricket)
- Southern University (American Football)
- Southern University (Basketball)
- Southern Utah (American Football)
- Southern Utah (Basketball)
- Southern Vipers (Cricket)
- Southerns (Cricket)
- Southerns Women (Cricket)
- Southland (Rugby Union)
- Southport (Australian Rules Football)
- Southside Flyers (Basketball)
- Soyaux Angoulême XV Charente (Rugby Union)
- Spain (Football)
- Spain (Tennis)
- Spain (Basketball)
- Spain (Cricket)
- Spain (Rugby League)
- Spain (Hockey)
- Spain (Handball)
- Spain (Rugby Union)
- Spain U19 (Football)
- Spain U20 (Rugby Union)
- Spain U21 (Football)
- Spain Women (Football)
- Spain Women (Lacrosse)
- Spain Women (Hockey)
- Spain Women (Rugby Union)
- Spain Women (Basketball)
- Spal (Football)
- Sparta Prague (Football)
- Sparta Prague Women (Football)
- Sparta Rotterdam (Football)
- Spartak Moscow (Football)
- Spartak Subotica Women (Football)
- Spartans Women (Football)
- Spennymoor Town (Football)
- Spennymoor Town Ladies (Football)
- Spezia (Football)
- Spirit Women (Cricket)
- Sporting Kansas City (Football)
- Sporting Khalsa Women (Football)
- Sporting Lisbon (Football)
- Springbok Women's XV (Rugby Union)
- SpVgg Unterhaching (Football)
- Sri Lanka (Cricket)
- Sri Lanka (Netball)
- Sri Lanka (Football)
- Sri Lanka (Rugby Union)
- Sri Lanka A (Cricket)
- Sri Lanka A Women (Cricket)
- Sri Lanka Air Force Sports Club (Cricket)
- Sri Lanka Army (Cricket)
- Sri Lanka Army Sports Club (Cricket)
- Sri Lanka Board President's XI (Cricket)
- Sri Lanka Cricket Development XI (Cricket)
- Sri Lanka Cricket President's XI (Cricket)
- Sri Lanka Cricket President's XI Women (Cricket)
- Sri Lanka Cricket XI (Cricket)
- Sri Lanka Emerging Team (Cricket)
- Sri Lanka Legends (Cricket)
- Sri Lanka Masters (Cricket)
- Sri Lanka Navy Sports Club (Cricket)
- Sri Lanka Ports Authority Cricket Club (Cricket)
- Sri Lanka Team A (Cricket)
- Sri Lanka Team B (Cricket)
- Sri Lanka Under-19s (Cricket)
- Sri Lanka Women (Cricket)
- Sri Lanka Women Under-19s (Cricket)
- Srisaket Sor Rungvisai (Boxing)
- SS Cosmos (Football)
- St Albans City (Football)
- St Andrew's (Football)
- St Bonaventure (Basketball)
- St Cuthbert Wanderers (Football)
- St Etienne (Football)
- St Gallen (Football)
- St George FC (Football)
- St Helens (Rugby League)
- St Helens Women (Rugby League)
- St John's (Basketball)
- St Johnstone (Football)
- St Kilda (Australian Rules Football)
- St Kitts and Nevis Patriots (Cricket)
- St Lucia (Football)
- St Lucia (Netball)
- St Lucia Zouks (Cricket)
- St Mirren (Football)
- St Mirren Women (Football)
- St Patrick's Athletic (Football)
- St Vincent & The Grenadines (Netball)
- St. Joseph's (Football)
- St. Kitts and Nevis (Football)
- St. Louis BattleHawks (American Football)
- St. Louis Blues (Ice Hockey)
- St. Louis Cardinals (Baseball)
- St. Louis City SC (Football)
- St. Vincent and the Grenadines (Football)
- Stabæk (Football)
- Stade Briochin (Football)
- Stade Francais (Rugby Union)
- Stade Montois (Rugby Union)
- Stade Niçois (Rugby Union)
- Stade Toulousain (Rugby Union)
- Staffordshire (Cricket)
- Staffordshire Women (Cricket)
- Stallions (Cricket)
- Stamford Women (Football)
- Standard Liege (Football)
- Stanford (American Football)
- Stanford (Basketball)
- Starlights (Cricket)
- Start (Football)
- State Bank of Pakistan (Cricket)
- Staveley Miners Welfare (Football)
- Steelbacks (Cricket)
- Stenhousemuir (Football)
- Stenhousemuir Women (Football)
- Stephan Shaw (Boxing)
- Stephen F. Austin (Basketball)
- Stephen F. Austin (American Football)
- Stephen Fulton (Boxing)
- Stetson (Basketball)
- Steve Claggett (Boxing)
- Steve Rolls (Boxing)
- Steve Spark (Boxing)
- Steven Butler (Boxing)
- Steven Nelson (Boxing)
- Stevenage (Football)
- Stevenage Women (Football)
- Sticker Ladies (Football)
- Stipe Miocic (Mixed Martial Arts)
- Stirling Albion (Football)
- Stirling University (Football)
- Stockport County (Football)
- Stockport County Ladies (Football)
- Stoke City (Football)
- Stoke City Ladies (Football)
- Stony Brook (American Football)
- Stony Brook (Basketball)
- Storm (Rugby League)
- Stormers (Rugby Union)
- Stourbridge (Football)
- Stourbridge FC Women (Football)
- Stranraer (Football)
- Strasbourg (Football)
- Stratford Town (Football)
- Strathclyde Sirens (Netball)
- Strathspey Thistle (Football)
- Strikers (Cricket)
- Strømsgodset (Football)
- Sturm Graz (Football)
- Sturt (Australian Rules Football)
- Subiaco (Australian Rules Football)
- Subriel Matías (Boxing)
- Sudan (Football)
- Suduva (Football)
- Suffolk (Cricket)
- Suffolk Women (Cricket)
- Sugar Land Space Cowboys (Baseball)
- Sui Northern Gas Pipelines Limited (Cricket)
- Sullivan Barrera (Boxing)
- Sultans Of Surat (Cricket)
- Sumqayit (Football)
- Sunderland (Football)
- Sunderland Women (Football)
- Sunny Edwards (Boxing)
- Sunrisers (Cricket)
- Sunrisers Eastern Cape (Cricket)
- Sunrisers Hyderabad (Cricket)
- Sunwolves (Rugby Union)
- Super Women (Cricket)
- Supernovas (Cricket)
- Surfers Paradise (Australian Rules Football)
- Suriname (Football)
- Surrey (Cricket)
- Surrey 2nd XI (Cricket)
- Surrey 89ers (Basketball)
- Surrey Jaguars (Cricket)
- Surrey Scorchers (Basketball)
- Surrey Storm (Netball)
- Surrey Women (Cricket)
- Sussex (Cricket)
- Sussex 2nd XI (Cricket)
- Sussex Women (Cricket)
- Sutjeska (Football)
- Sutton Coldfield Town Ladies (Football)
- Sutton United (Football)
- Sutton United Women (Football)
- SV Darmstadt 98 (Football)
- SV Sandhausen (Football)
- SV Zulte Waregem (Football)
- Sven Elbir (Boxing)
- Swan Districts (Australian Rules Football)
- Swansea City (Football)
- Swarmz (Boxing)
- Swaziland (Football)
- Swaziland Women (Cricket)
- Sweden (Football)
- Sweden (Tennis)
- Sweden (Ice Hockey)
- Sweden (Rugby League)
- Sweden (Handball)
- Sweden U21 (Football)
- Sweden Women (Football)
- Sweden Women (Lacrosse)
- Sweden Women (Basketball)
- Swift Hesperange (Football)
- Swifts (Netball)
- Swindon Town (Football)
- Swindon Town WFC (Football)
- Swinton Lions (Rugby League)
- Switzerland (Football)
- Switzerland (Tennis)
- Switzerland (Ice Hockey)
- Switzerland (Handball)
- Switzerland (Rugby Union)
- Switzerland U21 (Football)
- Switzerland Women (Football)
- Switzerland Women (Lacrosse)
- Switzerland Women (Basketball)
- Sydney FC (Football)
- Sydney Kings (Basketball)
- Sydney Sirens (Ice Hockey)
- Sydney Sixers (Cricket)
- Sydney Sixers Women (Cricket)
- Sydney Swans (Australian Rules Football)
- Sydney Thunder (Cricket)
- Sydney Thunder Women (Cricket)
- Sydney United 58 FC (Football)
- Sydney University (Australian Rules Football)
- Sydney University Flames (Basketball)
- Sylhet Division (Cricket)
- Sylhet Strikers (Cricket)
- Sylhet Sunrisers (Cricket)
- Syngenta (Football)
- Syracuse (American Football)
- Syracuse (Basketball)
- Syria (Football)