The Laverda 350/500 is a series of 345 cc (21.1 cu in) and 497 cc (30.3 cu in) air cooled DOHC 4 stroke parallel twin motorcycles produced by the Italian manufacturer Laverda from 1977 to 1983. The engine was used as the basis of future 650, 650, 668 and 750 cc models. Around 5,000 of these models were produced in total.