Wicca is a pagan/witchcraft religion that became more prominent in the later portion of 20th century. Developed by a man named Gerald Gardner, Wicca was introduced officially in 1954. It is based around a very diverse set of ancient pagan and hermetic motifs for its structure and practice. There are many variations in Wiccan core structure, and is has no central authority, meaning that much of its practice is open to interpretation. Most ancient traditions and secrets were written and spoken only to initiates at the time of its inceptions. Because of this, there are many different denominations, sects, and variations (referred to as traditions), which each have their own hierarchy and centralization. This causes some disagreement over what really constitutes being Wiccan. Many traditions strictly follow the Garner version of the practice, while newer traditions (sometimes called eclectic traditions) deviate in some way.

Typically, Wicca is a duotheistic religion, meaning that those who practice it warship two primary deities (usually referred to as the Goddess and the God). The Goddess and the God are regarded in a henotheistic way, and encompass many different deities and divine aspects. Sometimes the God and Goddess are considered be a larger “cycle” or “process” instead of actual deities. Another belief in Wicca that has taken hold more recently is a monotheistic tradition, which excludes the God entirely, and focuses only on the Goddess.