This article is about things that people drink from. See also teacup dog referring to one of many very small breeds of dog.

A teacup is a small cup with a handle, generally a small one that may be grasped with the thumb and one or two fingers. It is typically made of porcelain ("china"). It is usually part of a set, composed of a cup and a matching saucer. These in turn may be part of a tea set in combination with a teapot, cream jug, covered sugar bowl and slop bowl en suite.

Some collectors acquire numerous one of a kind cups with matching saucers. Better teacups typically are of fine white translucent china and often decorated with floral patterns. They may also memorialize a location, person, or event. Such collectors may also accumulate silver teaspoons, these usually having a decorated ceramic insert in the handle with similar themes.

The first small cups specifically made for drinking the new beverage tea seen in Europe were exported from the Japanese port of Imari. Tea bowls in the Far East did not have handles, and the first European imitations, made at Meissen, were without handles too.