Dao are single-edged Chinese swords, primarily used for slashing and chopping. They can be straight or curved. The most common form is also known as the Chinese sabre, although those with wider blades are sometimes referred to as Chinese broadswords. In China, the dao is considered one of the four traditional weapons, along with the gun, qiang (spear), and the jian, called in this group "The General of Weapons".

Historically, Chinese swords are classified into two types, the jian and the dao. A Jian is a straight, double-edged sword mainly used for stabbing, and has been commonly translated into the English language as a longsword; while a dao is a single-edged sword mainly used for cutting, and has been translated as a saber or a "knife".