Officine Viberti was an Italian manufacturer of trailers, coach and bus bodies and mopeds, better known by its integral Monotral chassisless self-supporting coaches and buses. It was based in Turin. Viberti made the Vi-Vi moped from 1955 until 1957 in alliance with the German motorcycle manufacturer Victoria.
The company was founded in 1922 to build civilian and military transport vehicles and was a supplier to the Italian armed forces during World War II. One of its products was the SPA-Viberti AS.42 armored car.
Viberti is now part of the Acerbi-Viberti Group.