多年生黑麦草（学名：Lolium perenne）是一种禾本科植物。这种植物在中国南方各省区都有种植。它原产于西南欧、北非及亚洲西南。多用作饲料。

Lolium perenne, common name perennial rye-grass or English ryegrass or winter ryegrass, is a grass from the family Poaceae. It is native to Europe, Asia and northern Africa, but is widely cultivated and naturalised around the world.