The chonmage is a form of Japanese traditional haircut worn by men. It is most commonly associated with the Edo Period and samurai, and in recent times with sumo wrestlers. It was originally a method of using hair to hold a samurai helmet steady at the top of the head in battle.

A traditional Edo-era chonmage featured a shaved pate. The remaining hair, which was long, was oiled and tied into a small ponytail which was folded onto the top of the head in the characteristic topknot.