佳斯明河是乌克兰的河流，属于第聂伯河的右支流，河道全长164公里，流域面积4,570平方公里，雨水主要来自融雪雨水，流经基洛夫格勒州和基洛夫格勒州，最终注入克列缅丘格水库，每年十二月至翌年三月结冰。

The Tiasmyn river (Ukrainian:Тясмин) is a right tributary of the Dnieper River in Ukraine. The Tiasmyn originates in the north central part of the Dnieper hills in the central Ukrainian province of Kirovohrad. From there it flows through the Cherkasy Oblast, where it finally flows into the Kremenchuk Reservoir. The river forms a U-turn (180°) in its central run. Not counting the river's sharp turn, the river's source and its delta are located only 33 km (21 mi) away from each other.