The Monteverdi Sierra was a luxury sedan from the Swiss car manufacturer Monteverdi, which was produced from 1977 to 1982. As the basis for the Sierra, Monteverdi chose the F platform from the American automobile manufacturer Chrysler.

At the 1978 Geneva Motor Show, Monteverdi presented a convertible version of the Sierra, which was based on the shortened underbody of the Dodge Aspen Coupé. Although there were no four-seater luxury convertibles at the time alongside the much more expensive Rolls-Royce Corniche and thus no direct competition, the expected success failed to materialize and only two copies were built. A red painted vehicle (with manual window regulators) was delivered to the Swiss publisher Frey, another in silver remained in the factory. Both vehicles still exist: the silver-colored convertible is now in the Monteverdi Museum in Binningen; the red car was sold in 2006.