Prayer beads are a form of beadwork used to count the repetitions of prayers, chants, or mantras by members of various religions such as Hinduism, Buddhism, Shinto, Umbanda, Islam, Sikhism, the Baháʼí Faith, and some Christian denominations, such as the Roman Catholic Church, the Lutheran Church, the Oriental Orthodox Churches, and the Eastern Orthodox Churches. Common forms of beaded devotion include the mequteria in Oriental Orthodox Christianity, the chotki or komposkini or prayer rope in Eastern Orthodox Christianity, the Wreath of Christ in Lutheran Christianity, the Dominican rosary of the Blessed Virgin Mary in Roman Catholic Christianity, the dhikr in Islam, the japamala in Buddhism and Hinduism, and the Jaap Sahib in Sikhism.

Beadwork is the art or craft of attaching beads to one another by stringing them onto a thread or thin wire with a sewing or beading needle or sewing them to cloth. Beads are produced in a diverse range of materials, shapes, and sizes, and vary by the kind of art produced. Most often, beadwork is a form of personal adornment, but it also commonly makes up other artworks.