Vétra (or Vetra), or more formally the Société des Véhicules et Tracteurs Electriques,was a French manufacturer of trolleybuses and electric locomotives.Founded in 1925, it became one of Western Europe's largest builders of trolleybuses during the middle decades of the 20th century, making in excess of 1,750 vehicles, for cities in France and in several other countries. The company ceased production in 1964.