Liliane Montevecchi was a French-Italian actress, dancer, and singer.

Born in Paris, Montevecchi was best known for her performance in the musical Nine, which won her a Tony Award in 1982.

Montevecchi began her international career as a prima ballerina in Roland Petit's dance company.

She appeared in The Glass Slipper (with Michael Wilding) and Daddy Long Legs (with Fred Astaire), in both of which she appeared with leading lady Leslie Caron.

In the mid-1950s she was signed to a contract by MGM, which cast her in various roles in such films as Moonfleet with Stewart Granger and Meet Me in Las Vegas with Cyd Charisse. She then played in the Jerry Lewis vehicle The Sad Sack, King Creole with Elvis Presley, and The Young Lions with Montgomery Clift, Dean Martin and Marlon Brando. She took classes at the Actors Studio in New York, alongside Marilyn Monroe.

She appeared in episodes of many different American television shows, including 77 Sunset Strip, Playhouse 90, It Takes a Thief, The United States Steel Hour, as well as several TV movies.

Montevecchi died June 29, 2018, in New York City, New York. She was 85.