The Priests of Tel-alep were a group that existed within Vulcan society.

They once resided at the Suta temple in the city of ShirKahr and believed that by learning the truth of any situation, one was capable of accepting it calmly. During the events of the Time of Awakening, the Priests allowed the philosopher Surak along with his disciples to preach their message of pacifism along with logic to the masses. (Last Unicorn RPG module: The Way of Kolinahr: The Vulcans)

Presumably, they worshipped the Vulcan deity Tel-alep.
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