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Panulirus argus, the Caribbean spiny lobster is a species of spiny lobster that lives on reefs and in mangrove swamps in the western Atlantic Ocean. Other common names for the species in the United States include spiny lobster, Bermuda spiny lobster, common spiny lobster, crawfish, Florida spiny lobster, West Indian langouste and West Indian spiny lobster

P. argus have long, cylindrical bodies covered with spines. Two large spines form forward-pointing "horns" above the eyestalks. They are generally olive greenish or brown, but can be tan to mahogany. There is a scattering of yellowish to cream-colored spots on the carapace and larger (usually four to six) yellow to cream-colored spots on the abdomen. They have no claws (pincers). The first pair of antennae are slender, black or dark brown and biramous. The second pair of antennae are longer than the body, and covered with forward pointing spines. The bases of the second antennae are thick, can have a bluish tinge, and are likewise covered with rows of spines. The legs are usually striped longitudinally with blue and yellow and terminate in a single spine-like point. The somites of the abdomen are smooth and have a shallow furrow across the middle. Each has pairs of swimmerets on the underside that are yellow and black. The lobes of the tail are colored similarly to the swimmerets.

P. argus is a popular seafood item for human consumption. It is the most important food export of the Bahamas, and rivals the shrimp industry in the Florida Keys in commercial value. They are eagerly sought by both commercial lobster men and sport divers in South Florida, the Caribbean, the Bahamas, and Bermuda.

The main difference in types of lobsters can be seen by the claws or pinchers. The American or Maine Lobster has large front claws while the Florida Spiny Lobster does not. The clawed lobsters are often called cold water lobsters due to their normal habitat locations. The spiny, rock, or Florida lobster is generally considered a warm water lobster. The Florida Lobsters are most commonly caught for their tail meat, while the Maine lobster is known for it's claw and tail meat.

Lobsters can be cooked in many ways, a popular method in the Caribbean is to grill the lobster after splitting and seasoning.