There is a thriving world market in cut human hair of sufficient length for wig manufacture. In less developed countries, selling one's hair can be a significant source of income - depending on length, thickness and color, wig makers have been known to pay as much as US$40 for a head of hair. In the United States, cut hair of at least 10 inches (254 mm) length may be donated to charity.
Afro, curly hair allowed to grow out equally all around, popular with African Americans, but worn by others
Beatle cut , after the fashion of the early Beatles, long all around, neatly cut, very new to Americans at the time, but not an uncommon British haircut. During the height of Beatlemania Beatle wigs were sold.
Caesar cut , a short men's cut with longer bangs, also called a Clooney cut . Wildly popular among men from the early 1990s to the present.
Chonmage, a samurai's topknot. The hair on the top of the head was usually shaved, and the rest of the hair gathered together and tied in a topknot. A modified version is still worn by sumo wrestlers.
Cornrows, where hair is braided tightly in rows; originally an African hairstyle, known as Canerows in the UK
Crew cut, similar to buzz, originally worn by college rowers in the 1900s to distinguish themselves from football players, who had long hair (to supplement the inadequate helmets of the time)
DA, for "duck's ass", combed long on sides, parted in back, also called ducktail or southback. The parting in the back caused the hair to stick up, hence the name.
Devilock, Short in back and on sides, long in front.
Dreadlocks, where hair is divided into many long, matted plaits. Originally a Rastafarian hairstyle.
Finger wave, popular in N. America in the 1920s and 1930s
Flattop , just as it says, when combined with DA, called a Detroit. Because the flat top is not always compatible with a round head, there is often a spot on the top that is buzzed shorter, almost to the point of being shaved. This area is called the landing strip.
Fofa , short to medium length on the sides and back, with a receding hairline from the forehead back due to a natural baldness. Usually found on distinguished gentlemen and derived from the style of the monks.
Fohawk, short on the sides and back, medium length on top pushed up in a mohawk direction, short for 'fake mohawk'.
French twist , a classic "updo" in which long hair is gathered into a ponytail, then twisted together, and finally tucked and pinned together along the length of the roll.
High and tight, cut/buzzed very short (or even shaved) on sides and back up to the crown where the hair is left longer, can be a variation of crew cut or flattop
Jheri curl, A perm that loosens the curls of a black person's hair. Known more for the oily residue of the chemicals used ("Jheri Curl Juice") than the actual style.
khokhol/chochol/chachol, a Slavic name for a longer tuft of hair left on top or on the front side of the otherwise cleanly shaven or shortly cut man's hair.
Low and tight , cut/buzzed very short (or even shaved) on sides and back up to a line above the ears but below the crown, hair is left longer above this line
Mohawk, both sides shaved, buzz cut in the middle. (Also used interchangeably with "Mohican")
Mohican , both sides shaved or buzzed, long and usually spiked in the middle
Moptop, a shaggy straight cut with straight fringe, over the ears
Mullet, "business" (short) in the front and on top; "party" (long) in the back
Ofuku , worn by apprentice geisha in their final two years of apprenticeship. Similar to the wareshinobu style. Also called a momoware ("split peach") because the bun is split and a red fabric woven in the centre.
Pageboy, a women's hairstyle in which the hair is almost shoulder-length except for a fringe in the front.
Perm, or "permanent wave," is a chemical-induced curling of naturally straight hair. Originally done electrically with an apparatus resembling an electric chair. Among African-Americans, a perm is the straight or large-curled look created by chemical relaxers.
Pigtails , long hair is parted in the middle and tied on the sides, often curled into ringlets (hence the name).
Ponytail, long hair is tied in the back. (A "side ponytail" is tied on one side.)
Recon , an radical version of the High and Tight , with the sides and back cleanly shaved very high up the head, intentionally leaving a very extreme contrast between the longer top hair and the shaved sides.
Shaven head, or "skinhead"; no longer a political statement, but rather a popular hairstyle among men (and occasionally women) from all walks of life.
Side-locks : a hairstyle popular amongst Orthodox Jews where the peyos or side-locks are allowed to grow long, whilst the rest of the hair is cut.
Side-part : a hairstyle where the hair is instead of being parted in the middle parted on the side. It is very popular among school-children whom think it gives them a rebellious appearance.
Tonsure, a haircut where the crown of the head is shaven.
Undercut, variation of a bowl cut where the sides and back are cut/buzzed very short (or even shaved) so that the longer top hair (partially) covers buzzed hair
Wareshinobu , a hairstyle worn by geisha. Resembles a large bun and enhanced with a large number of flutters and other decorations.