A clothes locker (Kleiderspind) is used to store clothes and other belongings in a safe and secure place. Clothes lockers are used mostly in changing rooms, which go by a number of other names, including change rooms, dressing rooms, and locker rooms. Changing rooms can be found in many places, including sporting facilities and work areas. Basically, clothes lockers can be used for any public activity that requires people to change their clothing. This is the case for almost all sports activities and a wide variety of different jobs. For example, people who work in factories and food processing plants are often required to change into a uniform before work, as are people who work with dirty or dangerous materials. Many offices and similar work places also install clothes lockers for their employees, so that they can cycle to work, go to the gym, or simply keep their belongings in a secure location.

Large changing rooms with clothes lockers are also found at public beaches, swimming pools, and gymnasiums, where people can change into their active wear and lock up their belongings away from harm. Some wash rooms and public bathrooms also have clothes lockers, as do many amusement parks, train stations, and other public transportation facilities. Locker rooms are named because they provide lockers for personal storage, which can be used to store clothes and many other things. Many businesses install lockers in common rooms and similar locations even without access to changing room facilities at all.

The lockers that are used in these rooms are normally used for security as well as convenience, and locking mechanisms are crucial to their use. While a variety of different locks can be used in clothes lockers, combination locks and key locks are probably the most common. In many work places, each employee will be given access to a locker when they start their position, in much the same way that students are assigned lockers when they start the year. No matter how or where they are being used, clothes lockers provide people with the invaluable mechanism of convenience and security when they are away from home.