Plectroglyphidodon imparipennis is a species of damselfish in the family Pomacentridae.

[1] Adults of this species can grow up to 6 centimetres (2.4 in) TL.

[1] This fish is white in colouration with a yellow caudal fin.

Its dorsal fin has 12 spines and 14 to 15 soft rays.

This fish feeds on benthic algae and invertebrates.