Lloyd Aéreo Boliviano S.A.M. (Sociedad Anónima Mixta), abbreviated LAB, also known as LAB Airlines, was an airline serving as flag carrier of Bolivia. It operated domestic and international flights, aiming at passenger as well as cargo transport. LAB was active for more than 80 years, having been based in Cochabamba most of the time, with Cochabamba Airport being an important operational base. Before its demise its headquarters was on the property of Wilstermann Airport in Cochabamba. The largest hub was located in Santa Cruz de la Sierra (El Trompillo Airport or Viru Viru International Airport), though.

Lloyd Aéreo Boliviano was founded by Guillermo Kyllmann in Cochabamba on September 15, 1925. The name was chosen after the British insurance market Lloyd's of London for its image of safety and security. Flight operations were launched on 23 September using Junkers F.13 aircraft, the first of which had been a present from the German community in Bolivia.

In July 1930, LLoyd Aéreo began to serve international routes, with scheduled flights between La Paz, where it was based then, and Corumbá, Brazil. On the grounds of a co-operation agreement with Syndicato Condor, an airline catering for the German minority in Brazil, LAB passengers could connect in Corumbá on a flight to Rio de Janeiro, and vice versa. Over the following years, more destinations in Brazil were added, so that Lloyd Aéreo became the second largest airline in South America at that time, only surpassed by Avianca from Colombia. In 1932, the Bolivian government seized all of LAB's planes and staff, so that they could be dispatched for military use during the Chaco War with Paraguay.

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