Siphonophora can refer to:
*
''Siphonophora'' (millipede), a genus of millipedes in the family Siphonophoridae
*Siphonophora, an alternative spelling of
Siphonophorae
Siphonophorae (from Greek ''siphōn'' 'tube' + ''pherein'' 'to bear') is an order within Hydrozoa, which is a class of marine organisms within the phylum Cnidaria. According to the World Register of Marine Species, the order contains 175 species ...
, an order within Hydrozoa
{{Taxonomy disambiguation