S (the rivers names from letter "S") S Saide Salantas Salcia Salpe Saltuona Sanzile channel Saria Sausdravas Seimena Seira Serksne Sesupe Sesuva Sesuvis Siause Siesartis Simsa Sirvinta (the river Sesupe catchment area) Sirvinta (the river Sventoji catchment area) Skroblus Spengla (the river Merkys catchment area) Spengla (the river Zeimena catchment area) Srove Sruoja Stirnele Streva Sunija Suoja Susve Sventoji Sventoji (Baltic Sea) Sysa