Aegopinella ressmanni is a small species of land snail in the terrestrial pulmonate gastropod mollusk family Gastrodontidae, the glass snails.
It is characterized by having a larger shell than other Aegopinella species: its diameter attains , its height .
(Original description in Latin) The shell is more convex, with the body whorl swelling towards the front near the large aperture. The columellar margin is sufficiently arched.
The species is distributed in Austria, Czechia, Croatia, Germany, Hungary, Italy, and Slovenia.