- Sterlitamak.
- Stettin.
- Stevenage.
- Steyr.
- Stiring-Wendel 57350.
- Stirling.
- St. John's.
- Stockholm.
- Stockport.
- Stockton.
- Stockton-on-Tees.
- Stoke-on-Trent.
- Stonne 08390.
- Stormont.
- Stralsund.
- Strasbourg.
- Stratford-upon-Avon.
- Stratos.
- Straubing.
- Stresa.
- Struthof.
- Stryn.
- Stuttgart.
- Stymphale.
- Subiaco.
- Subotica.
- Suceava.
- Sucre.
- Sucy-en-Brie 94370.
- Sudbury.
- Suez.
- Suhl.
- Suining.
- Suippes 51600.
- Suita.
- Sukabumi.
- Sukhothai.
- Sukkur.
- Sulaimaniya.
- Sullana.
- Sully-sur-Loire 45600.
- Šumen.
- Sumène 30440.
- Suncheon.
- Sunchon.
- Sunderland.
- Sundsvall.
- Sunnyvale.
- Superbagnères 31110 Bagnères de Luchon.
- Superbarèges.
- Superbesse.
- Superdévoluy 05250 Saint-Étienne-en-Dévoluy.
- Surabaya.
- Surakarta.
- Surat.
- Suresnes 92150.
- Surgères 17700.
- Surrey.
- Survilliers 95470.
- Suse.
- Suva.
- Suwon.
- Suze-sur-Sarthe (La) 72210.
- Suzhou.
- Suzuka.
- Svobodnyi.
- Swanscombe.
- Swansea.
- Swindon.
- Świnoujście.
- Sybaris.
- Sydney.
- Sydney.
- Syktyvkar.
- Sylhet.
- Syracuse.
- Syracuse.
- Syriam.
- Syrte.
- Syzran.
- Szczecin.
- Szeged.
- Székesfehérvár.
- Székesfehérvar.
- Szolnok.
- Szombathely.