Los pulmonados (Pulmonata) son un grupo de discutida monofilia de moluscos gasterópodos que incluye los caracoles y babosas, que han desarrollado pulmones, lo que les permite vivir en tierra firme; son el único grupo de moluscos que han colonizado el medio terrestre, y de ahí el nombre que reciben. Al conquistar la tierra perdieron las branquias ganando los pulmones que les permiten la respiración aérea.

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Pulmonata, or "pulmonates", is an informal group (previously an order, and before that a subclass) of snails and slugs characterized by the ability to breathe air, by virtue of having a pallial lung instead of a gill, or gills. The group includes many land and freshwater families, and several marine families. The taxon Pulmonata as traditionally defined was found to be polyphyletic in a molecular study per Jörger et al., dating from 2010. Pulmonata are known from the Carboniferous Period to the present. Pulmonates have a single auricle and kidney, and a concentrated, symmetrical, nervous system. The mantle cavity is located on the right side of the body, and lacks gills, instead being converted into a vascularised lung. Most species have a shell, but no operculum, although the group does also include several shell-less slugs. Pulmonates are hermaphroditic, and some groups possess love darts.

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