A head is the part of an organism, which usually comprises the eyes, ears, nose and mouth, each of which aid in various sensory functions, such as sight, hearing, smell, and taste. Some very simple animals may not have a head, but many bilaterally symmetric forms do. Heads develop in animals by an evolutionary trend known as cephalization. In bilaterally symmetrical animals, nervous tissues concentrate at the anterior region, forming structures responsible for information processing. Through biological evolution, sense organs and feeding structures also concentrate into the anterior region; these collectively form the head.

HEAD NV is a sports equipment and clothing company, mainly for their alpine skis and tennis rackets. The company includes parts of several previously independent companies, including Head Ski Company, founded in Delaware in 1950; Tyrolia, an Austria ski-equipment manufacturer; and Mares, an Italian manufacturer of diving equipment. Head Ski Company produced one of the first successful metal-wood composite downhill ski, the Head Standard, and one of the first over-sized metal tennis rackets. The company is in 2013 headquartered in Kennelbach, Austria and Amsterdam, Netherlands. HEAD NV’s ordinary shares are listed on the Vienna Stock Exchange.