Economidichthys pygmaeus, the Western Greece goby, is a species of freshwater goby endemic to western Greece where it is an inhabitant of streams and rivers. It is suspected to also occur in Albania. Males of this species can reach a length of 5.1 centimetres (2.0 in) TL while females can reach a length of 5.4 centimetres (2.1 in) TL.