A wine cellar is a place where wine is stored in bottles, barrels, or, less commonly, carboys, amphorae, or plastic containers. A climate control system keeps crucial parameters like temperature and humidity in an operating wine cellar under control.

Passive wine cellars, on the other hand, are not climate-controlled and are typically built below to minimize temperature changes. A wine room is a phrase used to describe an aboveground wine cellar, whereas a wine closet is a term used to describe a tiny wine cellar (less than 500 bottles).