USS Grenadier (SS-210), a Tambor-class submarine, was the first ship of the United States Navy to be named for the grenadier fish, relatives of cod that are very common in bathyal and abyssal habitats.

The steam ship Cap Finisterre was a German transatlantic ocean liner of the early 20th century, which was transferred to Japan in 1920 as German war reparations, and renamed Taiyō Maru (大洋丸) on trans-Pacific routes. She was sunk on army service by an American submarine in 1942, during World War II, with the loss of over 800 lives, mostly civilians.