A shotglass is a small drinking glass which can contain approximately one ounce of fluid (assuming the fluid has roughly the same density as water). Shotglasses are conventionally used to imbibe beverages which have a very high alcohol content in convenient, mouthful-sized quantities. These beverages are generally ingested in their pure form, although some mixed drinks are served in shotglasses. A "shot" is the basic unit of any hard alcohol beverage.

Beverages most commonly ingested with shotglasses include vodka, rum, whiskey, schnapps and various flavored liqueors.