Ophiura is a genus of echinoderms belonging to the family Ophiuridae.
The genus has cosmopolitan distribution.
The following extant species are known:
The following definitive fossil species are known. The genus dates back to at least the Early Paleocene with O. achatae:
The following species, dating back to the Early Jurassic, were originally placed in Ophiura but are now thought to belong to a different subdivision, or are at least known to not actually belong to the genus: