In the Mediterranean Basin and the Near East, a kiosk (Persian کوشک Kushk; Arabic كشك Koshk; Turkish Köşk; Urdu Khoka;French Kiosque; German Kiosk; Polish Kiosk; Portuguese Quiosque; Romanian Chioşc; Bulgarian кьошк, kyoshk; Serbian Kiosk or Киоск; and Spanish Quiosco or kiosco) is a small, separated garden pavilion open on some or all sides. Kiosks were common in Persia, India, Pakistan, and in the Ottoman Empire from the 13th century onward. Today, there are many kiosks in and around the Topkapı Palace in Istanbul, and they are still a relatively common sight in Greece. Turkish kiosks are usually polygonal. Indian Kiosk are generally called "Gumti" and sometimes "khokha" too.

The word, which is of Persian origin, refers to an object that acts as a shadow or shade-maker.

The word "köşk" is currently used to refer to an old Ottoman style building, made of wood and clad with natural stones, with multiple stories, mainly used as a summer or winter recreational residence for the wealthy within the old Ottoman Imperial Palace. During the 18th century, Turkish influences in Europe established the kiosk (gazebo) as an important feature in European gardens.

In English-speaking countries, a kiosk is a booth with an open window on one side. Some vendors operate from kiosks, selling small, inexpensive consumables such as newspapers, magazines, lighters, street maps, cigarettes, and confections.

An information kiosk (or information booth) dispenses free information in the form of maps, pamphlets, and other literature, and/or advice offered by an attendant.

An electronic kiosk (or computer kiosk or interactive kiosk) houses a computer terminal that often employs custom kiosk software designed to function flawlessly while preventing users from accessing system functions. Indeed, kiosk mode is a euphemism for such a mode of software operation. Computerized kiosks may store data locally, or retrieve it from a computer network. Some computer kiosks provide a free, informational public service, while others serve a commercial purpose. Touchscreens, trackballs, computer keyboards, and pushbuttons are all typical input devices for interactive computer kiosk.