Human branding or stigmatizing is the process by which a mark, usually a symbol or ornamental pattern, is burned into the skin of a living person, with the intention that the resulting scar makes it permanent. This is performed using a hot or very cold branding iron. It therefore uses the physical techniques of livestock branding on a human, either with consent as a form of body modification; or under coercion, as a punishment or to identify an enslaved, oppressed, or otherwise controlled person. It may also be practiced as a "rite of passage", e.g. within a tribe, or to signify membership of or acceptance into an organization.

Livestock branding is a technique for marking livestock so as to identify the owner. Originally, livestock branding only referred to hot branding large stock with a branding iron, though the term now includes alternative techniques. Other forms of livestock identification include freeze branding, inner lip or ear tattoos, earmarking, ear tagging, and radio-frequency identification (RFID), which is tagging with a microchip implant. The semi-permanent paint markings used to identify sheep are called a paint or color brand. In the American West, branding evolved into a complex marking system still in use today.