Lella Vignelli (born Elena Valle; August 13, 1934 – December 22, 2016) was an Italian architect, designer, and businesswomen.

[8][11] At Unimark, Lella Vignelli served as the head of the interior design department in Milan beginning in 1965, and later in New York.

[8][13] The design was awarded the Compasso d'Oro in 1964,[14] and was still in production and sold as Vignelli Stacking Dinnerware in 2023, nearly 60 years after it was first introduced.

[12] The firm's commissions included corporate identity programmes for Bloomingdale's department store in 1972, Lancia automobiles in 1978, and Ducati motorcycles in 1992, as well as the signage system for the Guggenheim Museum Bilbao in 1997.

[8][26] Other Vignelli designs have included retail layouts for Artemide, jewelry for Cleto Munari, and glassware for Venini and Steuben Glass Works.

[8] LelIa Vignelli also collaborated closely with the architect Denise Scott Brown, and was a frequent speaker and juror for national and international design organizations.

The archive, which contains c. 500,000 items including "sketches, prototypes, models, technical plans, correspondence, contracts, mechanicals, photographs, material samples, videos, and digital files" is held in a new building, designed by the Vignellis, called The Vignelli Center for Design Studies, which opened in September 2010.

[33] As well as display, storage, and conservation facilities for the archives, the Vignelli Center includes exhibition spaces, meeting rooms, classrooms, and offices.