Epinephelus albomarginatus, the white-edged grouper, white-edged rockcod or captain fine, 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 southwestern Indian Ocean and it is associated with coral reefs. It is a target species for commercial and recreational fisheries.

Description Epinephelus albomarginatus has a body with a standard length which is 2.6 to 3.0 times as long as its depth. The preopercle has an angle and has 2-3 enlarged serrations at its angle. The dorsal fin has 11 spines and 14 soft rays while the anal fin contains 3 spines and 8 so rays. The membranes between the dorsal fin spines are obviously incised. The pelvic fins are as long as or slightly longer than the pectoral fins while the caudal fin is truncate, the corners of the caudal fin are rounded in adults. The jaws are armed with two rows of teeth, the outer row being enlarged. There are 56 to 66 scales in the lateral line.