Incense is an aromatic biotic material that emits fragrant smoke when burned. The term is used for either material or flavor. Incense is used for aesthetic reasons, aromatherapy, meditation and ceremony. It can also be used as a simple deodorant or insect repellent.

Incense is composed of aromatic vegetable materials, often combined with essential oils. The forms of incense differ from the underlying culture and have changed with technological advances and the growing number of uses.