S
| English Name | Other name(s) or older name(s) |
|---|---|
| Saane/Sarine | Saane (German), Sarine (French) |
| Saale | Saale (German), Sala (Latin, Polish), Sála (Czech) |
| Saar | Saar (Danish, German, Hungarian, Italian, Romanian), Saar - Саар (Russian), Saara (Polish), Saravus (Latin), Sarre (French, Portuguese, Spanish) |
| Sajó | Sajó (Hungarian), Salza (German), Slaná (Czech, Slovak) |
| Sambre | Sabis (Latin), Saves - Σαβης (Ancient Greek), Sambe (Walloon), Samber (Dutch), Sambra (Polish), Sambre (Catalan, French, German) |
| Saônes | Arar (Latin), Saona (Catalan, Czech, Italian, Polish, Portuguese, Spanish), Saône (Estonian, Dutch, French, German, Hungarian) |
| Sava | Sava (Bosnian, Croatian, Italian, Romanian, Serbian, Slovene, Turkish), Sáva (Czech), Save (German, variant in English), Savus (Latin), Sawa (Polish), Száva (Hungarian), Sàvos - Σαβος (Ancient Greek) |
| Scheldt | Escalda (Spanish), Escaut (French), Escô (Walloon), Schelda (Italian), Schelde (Dutch, German, Hungarian, Swedish), Šelda (Czech), Skalda (Polish) |
| Seine | Szajna (Hungarian), Seine (Dutch, French, German, Swedish variant), Séna, Seina (Czech), Seinen (Danish, Swedish), Sikouànas - Σηκουάνας (Greek), Sekwana (Polish), Sen (Turkish), Sena (Catalan, Galician, Portuguese, Romanian, Spanish, Slovene), Sena - Сена (Serbian, Russian, Ukrainian), Senna (Italian), Sequana or Sequanna (Celtic), Sequana or Sequanus (Latin), Sinne (Walloon) |
| Semois | Semois (French ), Semoy (French ), Séisbaach (Luxembourgish) |
| Sense/Singine | Sense (German), Singine (French) |
| Severn | (Afon) Hafren (Welsh), Sabrina (Latin) |
| Siret | Sireth (traditional English), Hierasus (Latin), Hierasòs - Ιερασος (Ancient Greek), Seret (Polish), Siret (Romanian), Szeret (Hungarian), Сирет (Russian) |
| Soča | Aesontius / Sontius (Latin), Aepsòdios - Αιψωντιος (Ancient Greek), Isonzo (German, Italian), Isonzó (Hungarian), Soča (Czech, Slovene) |
| Someş | Someş (Romanian), Szamos (Hungarian) |
| Someşul Mare | Someşul Mare (Romanian), Nagy-Szamos (Hungarian) |
| Someşul Mic | Someşul Mic (Romanian), Kis-Szamos (Hungarian) |
| Somme | Somma (Polish), Somme (French, German, Hungarian, Romanian, Swedish) |
| Spey | Spè (Scottish Gaelic) |
| Spree | Spree (German, Swedish), Spréva (Czech), Spreva (Latin), Sprewa / Szprewa (Polish), Sprjewja (Lower Sorbian), Sprowja / Sprewja / Šprewa (Sorbian) |
| Struma | Karasu (Turkish), Strimónas - Στρυμώνας (Greek), Strouma (French, variant in English), Struma - Струма (Bulgarian, Serbian), Struma (Czech), Strymon (ancient Greek, Latin, variant in English), Sztruma (Hungarian) |
| Sûre | Sauer (German, Luxembourgish), Sûre (French), Sura (Latin, Italian) |
| Świna | Świna (Polish), Swina (Pomeranian), Svina (Czech), Swine (German) |
Read more about this topic: List Of European Rivers With Alternative Names