rumänische Ortsnamen
| Slatinioara |
| Slatinita |
| Slimnic |
| Smig |
| Snide |
| Soala |
| Soard |
| Soars |
| Socet |
| Socolu de Cimpie |
| Soharu |
| Sohodol (bei Hunedoara) |
| Sohodol (bei Cimpeni) |
| Sohodol (bei Brasov) |
| Soimeni (bei M. Ciuc) |
| Soimeni (bei Dej) |
| Soimus (bei Bistrita) |
| Soimus (bei Brad) |
| Soimus (bei Blaj) |
| Soimus (bei Tirnaveni) |
| Soimusu Mare |
| Soimusu Mic |
| Solocma |
| Solomon |
| Solona |
| Solovastru |
| Somartin |
| Somcutu Mic |
| Someseni |
| Somesu Cald |
| Somesu Rece |
| Somostelnic |
| Sona (bei Tirnaveni) |
| Sona (bei Rupea) |
| Soporu de Cimpie |
| Sopteriu |
| Sorostin |
| Sovata |
| Spalnaca |
| Spatac |
| Spermezeu |
| Spermezeu-Vale |
| Spini |
| Sping |
| Stana |
| Stanculesti |
| Stanija |
| Stauini |
| Stei |
| Steia |
| Stejarel |
| Stejareni |
| Stejaris (bei Agnita) |
| Stejaris (bei Tirgu Mures) |
| Stejaris (bei Turda) |
| Stefanica |
| Stenea |
| Stina de Mures |
| Stinceni |
| Stincesti-Ohaba |
| Stircu |
| Stiuleti |
| Stoboru |
| Stoiana |
| Stoiceni |
| Stoineasa |
| Stolna |
| Stroja (bei Cluj) |
| Stroja (bei Blaj) |
| Strei-Sacel |
| Strei |
| Streisingeorgiu |
| Stremt |
| Stretea |
| Streza-Cirtisoara |
| Srimbu |
| Srimbu-Baiut |
| Strugureni |
| Strungari |
| Stupini |
| Stupinii Prejmerului |
| Stupinis |
| Suaras |
| Suatu |
| Subcetate (bei Gheorgheni) |
| Sub-Cetate (bei Odorheiu Sec.) |
| Subcetate (bei Hateg) |
| Subpadure |
| Sub Padure |
| Sub Piatra |
| Suceagu |
| Sucesti |
| Suciu de Jos |
| Suciu de Sus |
| Sucutard |
| Sugag |
| Sulighete |
| Sumurducu |
| Suplac |
| Suplai |
| Sura Mare |
| Sura Mica |
| Surcea |
| Surda |
| Surdu |
| Surduc (bei Turda) |
| Surduc (bei Dej) |
| Suseni (bei Hateg) |
| Suseni (bei Gheorgheni) |
| Suseni (bei Reghin) |
| Suseni Birgaului |
| Sutoru |
| Sutu |
- |
deutsche Ortsname
| - |
| Pintak |
| Stolzenburg |
| Schmiegen |
| - |
| Schaal |
| Schard |
| Groß-Scharosch |
| - |
| Mikeldorf |
| - |
| - |
| - |
| Dürrbach |
| - |
| - |
| Almesch |
| Falkendorf |
| - |
| Schalmen |
| - |
| - |
| - |
| - |
| - |
| Reußischdorf |
| Martinsberg |
| - |
| Mikelsdorf |
| - |
| - |
| - |
| Schönau |
| Schönen |
| - |
| Siebendorf |
| Schorsten |
| - |
| - |
| Sachsenbach |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| Peschendorf |
| Probstdorf |
| - |
| - |
| - |
| Walachisch Stein |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| Hohenwarte |
| - |
| - |
| - |
| Nußschloß |
| - |
| Oberkerz |
| - |
| - |
| Rothkirch |
| Strägendorf |
| - |
| Rohrau |
| - |
| - |
| - |
| Burgberg |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| Großscheuern |
| Kleinscheuern |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| Pränzdorf |
| Ober-Borgo |
| - |
| - |
|
ungarische Ortsnamen
| - |
| Pintak |
| Szelindek |
| Somogyon |
| - |
| Salya |
| Sard |
| Nagysaros |
| - |
| Mezöszokol |
| Szohor |
| - |
| - |
| Szohodol |
| Csikcsomortan |
| Solyomkö |
| Solymos |
| Marossolymos |
| Magyarsolymos |
| Küküllösolymos |
| Nagysolymos |
| Kissolymos |
| Szolokma |
| Gorbosalamon |
| Gorboszalonna |
| Görgenyoroszfalu |
| Martonhegy |
| Kissomkut |
| Szamosfalva |
| Melegszamos |
| Hidegszamos |
| Somostelke |
| Szepmezö |
| Szepmezö |
| Mezöszopor |
| Septer |
| Sorostely |
| Szovata |
| Ispanlaka |
| Szaszpatak |
| Ispanmezö |
| - |
| - |
| - |
| Sztana |
| - |
| - |
| - |
| Stejvaspatak |
| - |
| - |
| Bese |
| Prepostfalva |
| Cserefalva |
| Kercesed |
| - |
| Isztina |
| Maroscsucs |
| Göde |
| - |
| - |
| - |
| Vasartelke |
| Eszteny |
| - |
| - |
| Sztolna |
| Gesztragy |
| Öregyhaz |
| - |
| Zeykfalva |
| Sztrigyszentgyörgy |
| Diod-Varalya |
| - |
| - |
| Horgaspataka |
| Horgospataka |
| Mezöveresegyhaza |
| Sztrugar |
| Füzes |
| - |
| Mezösolymos |
| Szovaros |
| Magyarzovat |
| Gyergyovarhegy |
| Töröktelep |
| Varalya |
| Erdöalja |
| Erdöalja |
| Buvopatak |
| Szucsag |
| - |
| - |
| - |
| Szentgothard |
| - |
| - |
| Szomordok |
| Küküllöszeplak |
| Szulpai |
| Nagycsur |
| Kiscsür |
| Szörcse |
| Sükevalva |
| Süketfalva |
| Jaraszurduk |
| Szurduk |
| - |
| Gyergyoujfalu |
| Marosfelfalu |
| Felsöborgo |
| Zudor |
| Sütmeg |
|
