Cortinarius caperatus, commonly known as the wrinkled cort or gypsy mushroom, is a species of fungi of the genus Cortinarius. It was known as Rozites caperata for many years before genetic studies revealed that it belonged to the genus Cortinarius. The Latin specific name, caperatus, means wrinkled and refers to the distinctive texture of the cap. The ochre-coloured cap is up to 10 cm (4 in) across and has a fibrous surface. The clay-colored gills are attached to the stipe under the cap, and the stipe is whitish with a whitish ring. The flesh has a mild smell and flavor. It can resemble a number of other species, including the poisonous Inosperma erubescens in central Europe in summer.

Fruiting bodies of C. caperatus appear in northern parts of Europe and North America in addition to temperate Asia. They can be found in coniferous and beech woods in autumn as well as heathlands in late summer and autumn. The mushrooms have been found to bioaccumulate mercury and radioactive isotopes of caesium and can also be infested by maggots. It is otherwise a highly regarded edible species amongst European mushroom foragers.

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