Theistic Satanism, otherwise referred to as spiritual Satanism, or devil worship, is one of two manifestations of Satanism, in contrast to nontheistic Satanism. It is an umbrella term for religious groups that consider Satan to objectively exist as a deity, supernatural entity, or spiritual being worthy of worship or reverence, whom individuals may believe in, contact, and convene with, in contrast to the atheistic archetype, metaphor, or symbol found in LaVeyan Satanism.
Organizations who uphold theistic Satanist beliefs most often have few adherents, are loosely affiliated or constitute themselves as independent groups and cabals, which have largely self-marginalized. Another prominent characteristic of theistic Satanism is the use of various types of magic. Most theistic Satanist groups exist in relatively new models and ideologies, many of which are independent of the Abrahamic religions.