Valvata piscinalis, common name the European stream valvata or European valve snail, is a species of small freshwater snail with gills and an operculum, an aquatic gastropod mollusk in the family Valvatidae, the valve snails. It is also known as Cincinna piscinalis (Müller, 1774).

Subspecies of Valvata piscinalis include:

Valvata piscinalis has a somewhat pinched aperture and an attenuate spire. The spire height tends to increases in more eutrophic conditions. Shells of this species often exhibit four or five whorls and are white to beige with more orange to red pigmentation apically. The operculum shows spiral markings of around 10 turns, originating almost centrally.

The European valve snail can be confused with Valvata sincera, a native species in the Great Lakes; however, the North American species has a more spherical aperture, a wider umbilicus, a conical spire and more widely spaced and rough growth lines on the shell in comparison with the introduced species. In the Great Lakes, introduced mature adult European valve snails are 5 mm high and 3–5 mm wide. In Europe, this snail has been found up to 7 mm high and 6.5 mm wide, but is usually smaller.

Dimensions of the shell are:

The animals are yellow colored, spotted grey and white, with darker pigmentation on the snout, mantle and base of the penis. Blue eyes are at the base of long tentacles. Valvatids all exhibit an external bipectinate ctenidium (respiratory organ) which is visible as the animal moves around.

The distribution of Valvata piscinalis is Palearctic.

Although this species is widely distributed in some areas in North America as an introduced species, Valvata piscinalis has declined in some parts of its native distribution, and in some areas it is endangered.