Polystachya bifida is a species of flowering plant in the family Orchidaceae, native from south-east Nigeria to west-central tropical Africa. It was first described by John Lindley in 1862.
Polystachya bifida is native to south-east Nigeria and large parts of west-central tropical Africa: Burundi, Cameroon, Equatorial Guinea, Gabon, the , Rwanda and the Democratic Republic of the Congo.
Polystachya farinosa was assessed as "endangered" in the 2017 IUCN Red List, where it is said to be native only to Cameroon. , P. farinosa was regarded as a synonym of Polystachya bifida, which has a much wider distribution.