Does God exist in DnD?

Core D&D-pantheons Garl Glittergold, god of gnomes, humor, and gemcutting (also a demihuman power). Gruumsh, god of orcs (also a monster power). Nerull, god of death, darkness, murder and the underworld.

https://en.wikipedia.org/wiki/List_of_Dungeons_%26_Dragons_deities#:~:text=Core%20D%26D%2Dpantheons,-Greater%20deities&text=Garl%20Glittergold%2C%20god%20of%20gnomes,(also%20a%20monster%20power).&text=Nerull%2C%20god%20of%20death%2C%20darkness%2C%20murder%20and%20the%20underworld.