Cociella martingomoni is a species of marine ray-finned fish belonging to the family Platycephalidae, the flatheads.

Cociella martingomoni was first formally described in 2020 by Hisashi Imamura and Charatsee Aungtonya with its type locality given as the Andaman Sea to the south of Phuket.

[1] The name of this species honours the Australian ichthyologist Dr. Martin F. Gomon, the senior curator of fishes at the Museum of Victoria in recognition of his contribution to ichthyology.

This species has a high number of pectoral fin rays in comparison to its congeners, other than the brownmargin flathead (C. hutchinsi), with 21 to 23.

[3] Cociella martingomoni has only been recorded from the eastern Indian Ocean in the Andaman Sea.