The D'Vahl was a Vulcan D'Vahl-type survey ship that was in service with the Vulcan High Command in the mid-20th century. In 1958, the D'Vahl was under the command of Captain Tellus.
In January of that year, the D'Vahl rescued T'Mir and Stron, who had been stranded on Earth since October 1957. (ENT: "Carbon Creek")