杜比萨河是立陶宛的河流，属于尼曼河的右支流，河道全长131公里，流域面积1,973平方公里，河水主要来自雨水、融雪和地下水，该河有44条支流，是划舟的热门地点。

• Map of Dubysa basin
• Kurtuvėnai Regional Park

Dubysa, at 131 km, is the 15th longest river solely in Lithuania. It originates just a few kilometers from Lake Rėkyva near Šiauliai city. At first it flows south, but at Lyduvėnai turns southeast and near Ariogala - southwest. Dubysa is a Samogitian river. The first few kilometres of Dybysa are also known as Genupis or Šventupis.