A sticker is a type of label: a piece of printed paper, plastic, vinyl, or other material with pressure sensitive adhesive on one side. They can be used for decoration or for functional purposes, depending on the situation.

Stickers can come in many different shapes and sizes and also vary widely in color and design. They are often adhered to items such as lunchboxes, paper, lockers, notebooks, walls, cars, windows, and so on. Temporary name tags for example are frequently stickers.