Alcadia minima is a species of an operculate land snail, terrestrial gastropod mollusk in the family Helicinidae.

(Original description in Latin) The smooth shell has a rotund-depressed shape.

The spire is short and contains five, convex-flat whorls.

The aperture is semi-lunar with a thin, reflexed outer lip.

The aperture shows a toothed, notched columellar angle.