Alvania compacta is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.

It is sculptured like Alvania beanii, but with short, broad whorls.

[2] (Described as Rissoia acutelirata) The thin shell has a brownish ash-color.

It contains six convex whorls, rapidly enlarging, with a well-impressed suture.

[3] This species occurs off Alaska, USA to Northern Baja California, Mexico