This is a list of multiple theisms which are different doctrines, and philosophies that pertain to deity. If there are any theisms that I missed, or misrepresented please tell me, and I will add them to the list.
Theism: Theism is the belief in some form of deity.
Monotheism: Monotheism is the belief in only one deity.
Ditheism: Ditheism is the belief in two deities, which may be in conflict with each other.
Bitheism: Bitheism is the belief in two deities, which are not in opposition to each other, and are of equal power, but will represent two dualistic elements, forms, or states.
Duotheism: Duotheism is the belief in two deities usually when referring to a god, and goddess of equal power.
Tritheism: Tritheism is the belief that cosmic divinity is composed of three powerful entities, or trinity, or is also used to represent the belief in three deities.
Tetratheism: Tetratheism is the belief in four deities.
Polytheism: Polytheism is the belief in multiple deities.
Multitheism: Multitheism the belief in multiple forms of theism, or is sometimes seen as an archaic form of polytheism.
Apeirotheism: Apeirotheism is the belief in an infinite number of deities.
Omnitheism: Omnitheism is the belief that every entity is deity, and that all religions have the same core recognition of the same deity, or deities.
Omnism: Omnism is the belief, recognition, respect, and/or acceptance of all religions, and their deities.
Allotheism: Allotheism is the belief, and worship of a deity that is not from your own land.
Henotheism: Henotheism is the belief in one deity while not denying the existence of other deities.
Kathenotheism: Kathenotheism is the worship of one deity at a time, while not rejecting the existence of other deities.
Monolatrism: Monolatrism is the belief in many deities, while only worshiping one constantly.
Megatheism: Megatheism is the belief in one deity why others exist, but believing that your God is superior to everyone else’s.
Deism: Deism is the belief that deity does not interact with the world.
Pandeism: Pandeism is the belief that the creator of the universe became the universe, and then was no longer able to interact with it.
Polydeism: Polydeism is the believe that multiple deities created the universe, and then never again interacted with the universe.
Pantheism: Pantheism is the belief that deity is everything in reality, and is all-encompassing.
Cosmotheism: Cosmotheism is an older term for pantheism that also identifies deity with the world, and all of reality.
Panentheism: Panentheism is the belief that divinity is in the world, and the world is in divinity, and that it interpenetrates, and works through the world.
Hylotheism: Hylotheism is the belief that deity is matter, and because of that deity is everything.
Theopanism: Theopanism is a belief that the universe is a projection of deity.
Polypantheism: Polypantheism is a belief in multiple impersonal nontranscendent deities embodied by natural phenomena.
Physitheism: Physitheism is the belief in nature worship, and assigning deity, or deities to those natural phenomenons.
Anthropotheism: Anthropotheism is the belief that deities are ascendant human beings, or have human forms, and natures.
Ietsism: Ietsism is the unspecified belief in some form of undetermined transcendent force.
Antitheism: Antitheism is the direct opposition to the belief in any form of deity.
Agnosticism: Agnosticism is the belief that deity is unknown, or unknowable, but they do not believe there is sufficient justification for it either way.
Ignosticism: Ignosticism is the belief that refrains from making any judgments about deity until a rational definition is provided, and is not falsifiable.
Gnosticism: Gnosticism is the belief that a deity exist for certain.
Apatheism: Apatheism is the attitude that we should be apathetic towards the idea of deity.
Transtheism: Transtheism is a system of thought that is neither theistic, nor atheistic, but is beyond both of them, and transcends them.
Alatrism: Alatrism is the belief in deity, or deities, while not worshiping any of them.
Unitheism: Unitheism is the belief in unity of all things, and the divine. It’s the belief that we are all one and that everything is deity, but the definition of it has been known to change from person to person.
Autotheism: Autotheism is the belief that one’s self is deity, or that deity is inside one’s self.
Suitheism: The belief that one’s self is a deity, but there may be others.
Eutheism: Eutheism is the belief that deity is inherently good, merciful, and just.
Dystheism: Dystheism is the belief that deity is inherently not good, and possibly, although not necessarily, evil.
Maltheism: Maltheism is the belief that deity is inherently evil.