异燕麦属（学名：Helictotrichon）是禾本科下的一个属，为多年生草本植物。该属共有约80种，分布于温带地区。

Helictotrichon (alpine oatgras) is a genus of perennial flowering plants in the grass family.

Most of the species are native to Africa and Eurasia with a few species in North America. Helictotrichon sempervirens is widely cultivated as an ornamental.

Many species once considered part of Helictotrichon are now regarded as better suited to other genera. A large number are now in Helictochloa with smaller numbers of species in Amphibromus Arrhenatherum Avenula Danthoniastrum Duthiea Tricholemma and Trisetum.