Guentherus katoi is a species of fish in the Ateleopodidae family.

The fish is only known in Kumanonada Sea, Ryukyu Islands and Kume Island in Japan.

The fish was recorded at a length of 69.4 centimeters long (SL).

[2][3] The name katoi is named after Tatsuya Kato who collected the first specimen of the fish.

[3] This Ateleopodiformes-related article is a stub.