剑叶莎属（学名：Machaerina）是莎草科下的一个属，为多年生高大草本植物。该属共有约50种，分布于大洋洲及太平洋诸岛屿。

Machaerina (twigrush) is a genus of flowering plants in the sedge family. Its species occur in tropical America, the West Indies, Malesia, Australia and the Pacific region. The name comes from the Greek machaira (a large knife), alluding to the shape of the leaves in the type species – Machaerina restioides.