There is no special name for scientists who study religion. They are still scientists by profession and education. There are scientists who follow or even study religion. Some scientists such as astronomers, physicist and anthropologists manage to reconcile creationism with the big bang.
A person making a choice.
a scientist who studies religion call Religionalogist or Religiologist
A scientist that studies fungi is called a mycologist.
A biotechnology scientist.
An Oceanographer. Marine Biologist, that sort of thing.
A scientist that studies bears would be called an ursinologist.
a scientist who studys cells are called what
virologist
A meteorologist.
An aviologist.
biologist
astronomer
Mineralogists
A vulcanologist