SCP Foundation

So let's discuss some gods that exist in the SCP Universe. Lets start with…

Eldritch Horrors/Lovecraftian:

• The Scarlet King: Pretty much a more Lovecraftian version of the devil and is heavily involved in SCP-231.
• Yaldabaoth: A flesh god/goddess that Sarkic Cults worship that has six loyal Archons.
• The Hanged King of Alagadda: A being which rules the land of Alagadda which is also known as SCP-2264 and connected to SCP-701, the Hanged King's Tragedy.
• The Star Fish: I don't know particularly much about this one but it's a part of the Fifthist Church which is an odd group.
• The Cicada God: A divine cicada also known as SCP-3004 and it believes to be the Abrahamic god.
• SCP-3999: Pretty much madness incarnate.
• SCP-582: An eldritch horror that has no will and has many forms. It's actions is up to the writer who writes about it.

Other SCPverse Deities:

• He-Who-Made-Light and He-Who-Made-Dark: "Long ago, when the world was only water and sky, there were two brothers, “He-Who-Made-Light” and “He-Who-Made-Dark.” Like all brothers they fought. One time the light brother insulted the work of the dark brother. The dark one, he does not like this, and begins to destroy all the light in the world…"
• Pangloss: Benevolent and leaves quite enjoyable notes. He is also named The Flame
• Mekhane: The Church of the Broken God's deity that is a god of machines.
• Saint Alagadda: Not really known but is likely where the city Alagadda got its name from.

Hinduism:

• Kali: Kali is the goddess of destruction and doesn't appear directly. She appears through her avatar known as SCP-029.
• Anantashesha: It is up to interpretation if SCP-3000 is really Anantashesha. Personally, I kinda doubt that and have a small head canon that 3000 just influenced the idea of Shesha.

Abrahamic/Hebrew:

• The Creator/God/343: Well, SCP-343 claims to be the one god but that is debatable. Personally, I think of him as somewhat of an avatar.
• Moloch: Sacrifices are to be made to a statue of Moloch that is SCP-089. Failure results in catastrophe.

So yeah, anything else?

This one's up for interpretation/headcanon, but there's a good chance that SCP-3125 is a fifthist god.

The Lord of Endowments

The Maker in Pitch Haven which is like a really dark version of the God of Abraham.

I wanted to get a tag for this at one point. Slap a big old maybe on all of these, but:
Xiolt-la SCP-2440
Unnamed budding tentacle dude SCP-2662
Yahweh referenced in 343 and Spikebrennan's Proposal
The Deer SCP-2845
Srqnabotf SCP-1846
Mesopotamian god of war and the Sun, Nergal SCP-2270
Just, so many, although fewer by the end SCP-1936
Ptah and Sekhmet SCP-2343
Ashur and Suen SCP-3740
Maybe 682 Lucky Dinosaur
Mr. Money at at least one point SCP-2855

From 1936:

SCP-2547 is Coyote.

Llao and Skell in SCP-3310 (Llao is dead but in a Cthulhu-lies-dreaming sense)

So the Church of the Second Hytoth/Ortothan mythos I've been working has been building up a ton of gods. Only one of them appears as a skip though. For the sake of time this list won't have every detail I've envisioned (more details are in some of the articles), so here are the more prominent gods:

The Eight Princes of Corbenic come to mind.

The recent Team Bird series features a few different deities and acknowledges them as gods. They are as follows:

• Thoth: The central deity and antagonist Thoth AKA Sacred Djehuti is a manipulative trickster god, the very same one worshipped by the Egyptians. He imposed his will on the entire human race and conquers worlds to find vassals worthy of his paradise.
• Medila: As featured in SCP-3095. Medila is an Avian deity that bestows wisdom and intelligence to birds worldwide. Some of the birds affected by this become intelligent enough to be recognized as members of the Foundation, forming the Avian Division.
• Akheilos: As featured in SPC-507. Known to the Shark Punching Centre as WHITE NETHER, Akheilos is a chaotic Selachian deity that consumes knowledge and is an eternal enemy of Thoth.

• The Mistaken Beast: (Not actually featured in this series, just alluded to.¹) The creator of Akheilos. The Mistaken Beast is a universal Selachian monster that threatens to heavily distort each and every universe, one by one, upon awakening. Sharks are an inherent implausability and humorous plague on reality; the SPC punches them to keep the Mistaken Beast asleep.

The Night Emperor (SCP-3547) is personal favorite

1730 has the abrahamic "Fire and Brimstone" God, some giant monsters, "Malidramagiuan" and a God of Nightmares

Wasteland has a bunch

SCP-3388 is a maybe