Cryptandra polyclada is a species of flowering plant in the family Rhamnaceae and is endemic to the southwest of Western Australia.

It is a low, spreading to mat-forming or erect shrub with white or cream-coloured, tube-shaped flowers.

It was first formally described in 1904 by Ludwig Diels in Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie from specimens collected near Tammin.

[4] In 1995, Barbara Lynette Rye described two subspecies of C. polyclada in the journal Nuytsia, and the names are accepted by the Australian Plant Census: Subspecies aequabilis is listed as "Priority One" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions,[7] meaning that it is known from only one or a few locations which are potentially at risk,[10] and subsp.

polyclada as "Priority Three",[9] meaning that it is poorly known and known from only a few locations but is not under imminent threat.