水壶是一种盛载水或其他饮料的可携式容器，有不同的材质，有些更有保温功能。

在陶器产生以前，古人盛水的器皿是动物皮囊，如羊皮、鹿皮等。后来才用瓦器、陶、瓷等制成，或植物如葫芦、竹筒等。现代水壶材质多采用塑料、不锈钢、合金、陶、瓷、玻璃等。

A water bottle is a container that is used to hold water, liquids or other beverages for consumption. The use of a water bottle allows an individual to transport and lau beverage from one place to another. A water bottle is usually made of plastic, glass, sheepskin, or metal. Water bottles are available in different shapes, colors and sizes. In the past, water bottles were sometimes made of wood, bark, or leather as well. Water bottles can be either disposable or reusable. Reusable water bottles can also be used for liquids such as juice, iced tea, alcoholic beverages or soft drinks. Reusable water bottles can help save the environment and reduce the amount of waste. Water bottles are also easily portable for convenient use. Water bottles usually contain the nutrition facts, and also tell you how many ounces it has.