Opisthoteuthis dongshaensis is a species of octopus located in the South China Sea.

The type specimens, the animals used to formally describe the species, were found off Pratas Island.

[1] The type specimens of the species are held by the National Museum of Natural Science in Taichung, Taiwan.

Males have oversized suckers in the distal field (at the ends of the arms; far from the body).

Thick, fleshy webs connect their arms, creating the distinctive "umbrella" shape.