Stigmatopora argus, the spotted pipefish, is a species of ray-finned fish from the family of pipefish and seahorses (Syngnathidae).

The scientific name of the species is the first validly published in 1840 by Richardson.

[3][4] It is endemic to Australia, is usually green with obvious black spots on its dorsal surface and can grow to a length of 27 centimetres.

Stigmaptopora argus has a prehensile tail that it uses to clasp seagrass or macroalgae.

It feeds on small crustaceans, including copepods and mysids.