The deepwater grenadier (Coryphaenoides profundicolus) is a species of deep-sea fish in the family Macrouridae.

[3][4][5][6][7] The deepwater grenadier is very large for its genus, measuring up to 129 cm (4.23 ft) and 14 kg (31 lb).

[8] Olfaction and taste are important senses for finding prey, which is unsurprising as it lives in the near-total darkness of the deep sea.

[14] Otolith studies have shown that the deepwater grenadier lives at a variety of temperatures during its life.

[15][16] It is parasitised by Lepidapedon zubchenkoi and Steringophorus thulini, both trematode worms of the order Plagiorchiida.