ClubLocationLeagueTierFounded
SC Blieskastel—Dissolved 1987—1910
SC Enschede—Vierde Klasse—1910SG Benrath-Hassels—Bezirksliga Niederrhein—1910SSV Sand—Verbandsliga Hessen-Nord—1910
Sacavenense—AF Lisboa - 1ª Divisão—1910
Sandecja—III Liga - Grupa IV—1910
Sandhurst Town—Combined Counties League - Premier Division South—1910
Sant'Agostino—Eccellenza Emilia-Romagna—1910
Sarmiento Resistencia—Torneo Federal A—1910Saronno—Eccellenza Liguria—1910Schonnebeck—Oberliga Niederrhein—1910Schüren—Westfalenliga—1910
Sloboda Novi Grad—Prva Liga RS—1910Sneek Wit Zwart—Derde Klasse—1910Solingen 08/10—Bezirksliga Niederrhein—1910Solingen 08/10 II—Kreisliga A1 Remscheid-Solingen—1910Sparta Lwów—Dissolved 1939—1910Sportfreunde Dossenheim—Landesliga Rhein-Neckar—1910St. Pauli—2. Bundesliga—1910
Steinkjer—3. Divisjon - Group 5—1910Stjørdals-Blink—2. Divisjon - Group 2—1910
Subiaco—Football West State League 1—1910
Suisse—CDM R1 - Paris Île-de-France—1910Swift—Vierde Divisie—1910
Szolnoki MÁV—MB I - Jász-Nagykun-Szolnok—1910