Several things share the name decapod meaning "ten-legged":

• A group of crustaceans such as lobsters and crabs - the Order Decapoda
• Several steam locomotive wheel arrangements were also called Decapods.

Also:

• Decapodians are decapod-like characters in the cartoon series Futurama.
• Decapodiformes are ten-limbed cephalopods with eight legs and two tentacles.