A watering can (or watering pot) is a portable container, usually with a handle and a funnel, used to water plants by hand. It has been in use since at least A.D. 79 and has since seen many improvements in design. Apart from watering plants, it has varied uses, as it is a fairly versatile tool.

The capacity of the container can be anywhere from 0.5 litres (for indoor household plants) to 10 litres (for general garden use). It is usually made of metal, ceramic or plastic. At the end of the spout, a "rose" (a device, like a cap, with small holes) can be placed to break up the stream of water into droplets, to avoid excessive water pressure on the soil or on delicate plants.