The blacktip grouper (Epinephelus fasciatus), also known as the redbanded grouper, blacktipped cod, black-tipped rockcod, footballer cod, red-barred cod, red-barred rockcod, scarlet rock-cod or weathered rock-cod, 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.

The scales on the upper body have a pale centre and dark rear margin, which creates am indistinct checked pattern.

The outer membrane of the spiny part of the dorsal fin is black, or dark red in specimens from Western Australia and some from deep water.

There is a pale yellow or white spot to the rear of the tip of each of the dorsal fin spines.

[2][6] It is found associated with coral reefs from 4 m deep (more commonly from 15 m) up to 160 m, in both marine and brackish water, sometimes in groups of 10-15 individuals.

Raphidascaris (Ichthyascaris) fasciati is a nematode parasitic in the intestine, 20 mm in length, described in 2020 and named after the fish.

[10] The blacktip grouper was first formally described as Perca fasciata in 1775 by the Swedish speaking Finnish born explorer Peter Forsskål (1732-1763) with the type locality given as Ras Muhammad in the southern Sinai Peninsula of Egypt.