Succinella oblonga is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Succineidae.

It has 3 to 3½ strongly arched whorls which are set off from each other by a deep suture.

The surface is rough and bears somewhat irregular growth bands.

These two species are separated by anatomical differences: S. oblonga has a long penis with an epiphallus, long vas deferens and no black spot at the insertion of retractor at the penis.

This species lives throughout Europe, including but not limited to Latvia, Bulgaria,[3] Slovakia, Poland, the Czech Republic, Ukraine,[4] Netherlands, Great Britain, and Ireland.