Helicoidea
Helicoidea sunt superfamilia molluscorum terrestrium pulmonatorum cladi Stylommatophororum classis Gastropodorum.

Taxinomia

Taxinomia 2005 
Intra Helocoidea sunt undevicensimae familiae secundum taxinomiam gastropodorum a Bouchet et Rocroi propositam (2005).
 Helicidae
 Bradybaenidae
 Camaenidae
 Cepolidae
 Cochlicellidae
 Elonidae
 Epiphragmophoridae
 Halolimnohelicidae
 Helicodontidae
 Helminthoglyptidae
 Humboldtianidae
 Hygromiidae
 Monadeniidae
 Pleurodontidae
 Polygyridae
 Sphincterochilidae
 Thysanophoridae
 Trissexodontidae
 Xanthonychidae 

Secundum autem Hartmut Nordsieck, familia Xanthonychidae (sensu Hausdorf & Bouchet), probabiliter est polyphyletica et ergo in nonnullas familias dividi debet.

Taxinomia 2012 
Thompson & Naranjo-García (2012) descripserunt novam familiam Echinichidas, quam in superfamilia Xanthonychoideis posuerunt. Itaque, familia Xanthonychidae ab Helicoideis ad Xanthonychoidea mota est.

Notae 

Stylommatophora
Taxa Rafinesque
Taxa 1815