A sock puppet, sockpuppet, sock-puppet, or sock poppet is a puppet made from a sock or a similar garment. The puppeteer wears the sock on a hand and lower arm as if it were a glove, with the puppet's mouth being formed by the region between the sock's heel and toe, and the puppeteer's thumb acting as the jaw. The arrangement of the fingers forms the shape of a mouth, which is sometimes padded with a hard piece of felt, often with a tongue glued inside.

A puppet is an object, often resembling a human, animal or mythical figure, that is animated or manipulated by a person called a puppeteer. Puppetry is an ancient form of theatre which dates back to the 5th century BC in Ancient Greece.