Micromyrtus acuta is a species of flowering plant in the myrtle family, Myrtaceae and is endemic to the southwest of Western Australia.

[2][3] Micromyrtus acuta was first formally described in 2006 by Barbara Lynette Rye in the journal Nuytsia from specimens collected near Paynes Find in 1977.

[4] The specific epithet (acuta) means "sharply pointed", referring to the tips of the flower buds and sepals.

[3] This species of micromyrtus grows in open shrubland from near Lake Monger to near Paynes Find in the Avon Wheatbelt and Yalgo bioregions of south-western Western Australia.

[3][2] Micromyrtus acuta is classified as "Priority Three" by the Government of Western Australia Department of Parks and Wildlife[2] meaning that it is poorly known and known from only a few locations but is not under imminent threat.