A toupée (/tuːˈpeɪ/ too-PAY) is a hairpiece or partial wig of natural or synthetic hair worn to cover partial baldness or for theatrical purposes. While toupées and hairpieces are typically associated with male wearers, some women also use hairpieces to lengthen existing hair, or cover a partially exposed scalp.

The toupée developed during the 18th century.

While most toupées are small and designed to cover bald spots at the top and back of the head, large toupées are not unknown.

Toupées are often referred to as hairpieces, units, or hair systems. Many women now wear hairpieces rather than full wigs if their hair loss is confined to the top and crown of their heads.

Toupée comes from the French toupet, meaning tuft of hair, as in a curl or lock of hair at the top of the head, not necessarily relating to covering baldness.

The toupée developed during the 18th century; large toupées were popular in the 1770s. Their popularity began to fade after the French Revolution.

In the United States, toupée use (as opposed to wigs) grew in the 19th century. One researcher has noted that this is in part due to a shift in perceptions over the perceived value of aging that occurred at that time. Men chose to attempt to appear younger, and toupées were one method used.

...since 1800, the U.S. Census generally shows far more 39-year-olds than 40-year-olds. Furthermore, the costume of men switched from a design clearly intended to make the young look older to one that was clearly intended to make the old look younger. For example, this era saw the decline of the wig and the rise of the toupée.