The Pacific spadefish (Chaetodipterus zonatus) is a species of fish of the family Ephippidae.

It is native to the eastern Pacific, from San Diego, California to Peru,[2] including the Galápagos Islands where it is known as Chambo.

[3] C. zonatus has a very deep, compressed body with a blunt snout and a sloping, slightly concave profile.

It has a small mouth with the posterior end of the jaw not passing the front of the eye.

[5] C. zonatus is found in subtropical inshore seas, in areas with coral reefs or sandy bottoms, between 3–50 m.[2] They have also been seen occasionally in estuaries, mangroves and lagoons.