Pseudochromis yamasakii, the dottybelly dottyback, is a species of ray-finned fish in the family Pseudochromidae.

It is found in the north-western Pacific Ocean around Japan.

[1] Pseudochromis yamasakii reaches a standard length of 5.1 cm (2.0 in).

[2] The fish is named for Kimihiro Yamasaki, who collected the holotype specimen and provided photographs of the new species.

This Pseudochromidae-related article is a stub.