Papier-mâché (French, 'chewed-up paper') is a construction material that consists of pieces of paper, sometimes reinforced with textiles, stuck together using a wet paste (e.g. glue, starch, or wallpaper adhesive). The crafted object becomes solid when the paste dries.

A form of Papier-mâché had been in existance in China for hundreds of years until a much stronger version (including glue) was patented by Henry Clay of Birmingham England in 1702. It was a common technique for making dolls in the 19th century, before plastics became available. Piñatas are an example, as is one of the Papal Tiaras. Constructing papier-mâché is a common craft used to entertain children.