Cassianebalidae
{{Short description|Extinct family of gastropods}}
{{Taxobox
| name = Cassianebalidae
| image =
| image_caption =
| regnum = Animalia
| phylum = Mollusca
| classis = Gastropoda
| unranked_superfamilia = clade Heterobranchia
informal group Lower Heterobranchia
| superfamilia = † Streptacidoidea
| familia = Cassianebalidae
| familia_authority =Bandel, 1996
| subdivision_ranks =
| subdivision =
}}
The Cassianebalidae is an extinct taxonomic family of fossil sea snails, marine gastropod mollusks in the informal group Lower Heterobranchia.{{cite journal
|author1=Bouchet, P. |author2=Rocroi, J.-P.
| year = 2005
| title = Classification and Nomenclator of Gastropod Families
| journal = Malacologia
| volume =47
| issue = 1–2
| pages =
| doi =
}}