Lambretta is the Brand name of a line of motor scooters initially manufactured in Milan, Italy, by Innocenti. The name Lambretta was derived from a mythical water-sprite associated with the Lambrate river which also gives it name to the Lambrate area of Milan where the factory was located.

AInnocenti started production of Lambretta scooters in 1947, the year after Piaggio started production of its Vespa models. Lambrettas were manufactured under licence in Argentina, Brazil, Chile, Colombia, India and Spain, sometimes under other names, but always to a recognizable design, e.g. Siambretta in South America and Serveta in Spain. American retailer Montgomery Ward imported the Lambretta Li125 and sold it via their catalog under the Riverside captive import brand.