Streptaxoidea is a superfamily of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the suborder Achatinina of the order Stylommatophora.

There have been recognized the only family Streptaxidae within Streptaxoidea in the taxonomy of Bouchet & Rocroi (2005).

[2] Sutcharit et al. (2010)[1] have established a new family Diapheridae within Streptaxoidea as follows: Rowson et al. (2011)[3] have confirmed monophyly of Streptaxidae and Diapheridae as its sister group.

[3]