The tiger grouper (Mycteroperca tigris) is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It is found in the warmer waters of the western Atlantic Ocean.

The tiger grouper (Mycteroperca tigris) is a species of fish in the family Serranidae. This grouper has a tapered body, often reddish, with vertical stripes on its sides. It also may have, darker, dusky lines on the sides of its body. Young individuals have a yellow colour. This fish lives in sheltered reef areas.