A handkerchief is a form of a kerchief or bandanna, typically a hemmed square of thin fabric which can be carried in the pocket or handbag for personal hygiene purposes such as wiping one's hands or face, or blowing one's nose. A handkerchief is also sometimes used as a purely decorative accessory in the breast pocket of a suit; it can then be called a pocket square. A handkerchief is also an important accessory in many folk-dances in many regions like the Balkans and the Middle East; an example of a folk-dance featuring handkerchiefs is the Greek Kalamatianós.

A kerchief, also known as a bandana or bandanna, is a triangular or square piece of cloth tied around the head, face, or neck for protective or decorative purposes. The popularity of head kerchiefs may vary by culture or religion, often being used as a Christian headcovering by men and women of the Anabaptist, Eastern Orthodox, and Plymouth Brethren denominations, as well as by some Orthodox Jewish and Muslim men and women and is also considered a hat.