Fish fauna at reefs of the two northern Tokara Islands, southern Japan, were surveyed by underwater daytime census in October 2002 and October 2003. A total of 199 species of 41 families were recorded. Almost all (99%) species were known to distribute down to the southern coral reef Islands. The fish fauna seems to fit the southernmost category of the zoogeographical areas for shallow water reef fishes (subtropical-water area for coral- and rocky-reef fishes; sensu Nakabo, 2002a).