冰草（学名：Agropyron cristatum）是一种禾本科植物。

多年生草本，秆成疏丛。线形叶片较粗糙，边缘常内卷。夏季抽穗状花序，小穗紧密，两列整齐呈篦齿状。

Agropyron cristatum (crested wheat grass, crested wheatgrass, fairway crested wheat grass) is a species in the Poaceae family. This plant is often used as forage and erosion control. It is well known as a widespread introduced species on the prairies of the United States and Canada.