Cyperus microcephalus is a sedge of the family Cyperaceae that is native to northern Australia.

[1][2] The erect perennial sedge typically grows to a height of 0.2 to 1.2 metres (0.7 to 3.9 ft) and has a tufted habit.

It blooms between January and July and produces green-yellow-brown flowers.

[1] It is found in seasonally dry tropical areas in Queensland, the Northern Territory and Western Australia.

[2] In Western Australia it is found on rocky hillsides, cliffs, among boulders, in rock crevices and in creek beds in the Kimberley region where it grows in sandy soils over sandstone.