西疆岩蕨（学名：Woodsia alpina）为岩蕨科岩蕨属下的一个种。

Woodsia alpina, commonly known as alpine woodsia, is a fern found in northern latitudes in North America and Eurasia. Also known as northern woodsia or alpine cliff fern, it is typically found in crevices, scree slopes and cliffs containing slate and calcareous rocks, especially limestone.