A dissident Vulcan movement devoted to the original teachings of Surak, whose rediscovery of the Kir'Shara reshaped Vulcan society in 2154.
The Syrrannites were followers of Syrran, who believed the Vulcan High Command had distorted the philosophy of Surak. Persecuted as extremists, they lived in hiding in the Forge, the harsh desert region of Vulcan, where they practiced mind melding, a technique the government condemned.
In 2154 the Syrrannites were blamed for the bombing of the Earth embassy on Vulcan. Captain Archer and T'Pol crossed the Forge to find them and discovered that the evidence had been planted. Syrran transferred the katra of Surak into Archer before he died, and Archer used that knowledge to find the Kir'Shara, an artifact containing Surak's original writings.
With the help of T'Pau, the Syrrannites presented the Kir'Shara to the Vulcan people, exposing the conspiracy of Administrator V'Las. The High Command was dissolved, and Vulcan began a period of reform that brought its society closer to the logic Surak had taught.