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

The shell is depressed, somewhat thin, and finely striated with small wrinkles.

It is reddish under a deciduous epidermis, arranged in rows of bristles.

The body whorl is slightly depressed and has a thin callus in the middle underneath.

The columella is simple and receding, ending in a small tooth at the base.