旧艾瑟尔河是西欧的河流，流经德国和荷兰，河道全长81.7公里，流域面积1,208平方公里，平均流量每秒9.44立方米，最终注入艾瑟尔河。

Oude IJssel (Dutch), literally old IJssel, or Issel (German) is a river in Germany and the Netherlands approximately 80 km long. It is a right tributary of the river IJssel. Oude IJssel means "Old IJssel" in Dutch; the Oude IJssel was the upper course of the IJssel until the connection with the Rhine was dug, possibly in the Roman era.