Edward Henry Molyneux (/ˈmɔː.lə.nʊks/)[1] (5 September 1891 – 23 March 1974) was a leading British fashion designer whose salon in Paris was in operation from 1919 until 1950.

Molyneux found employment as a sketch artist for the London edition of the American magazine The Smart Set, where his drawings of fashionable women attracted the attention of the celebrated couturier Lucile (in private life Lady Duff Gordon).

Molyneux was, as historian Caroline Milbank wrote, "the designer to whom a fashionable woman would turn if she wanted to be absolutely right without being utterly predictable in the Twenties and Thirties".

[7] He was also a favourite with trendsetting actresses including Greta Garbo, Marlene Dietrich, Gertrude Lawrence, Margaret Leighton, and Vivien Leigh.

He resumed designing in 1964, opening Studio Molyneux, a high quality ready-to-wear line that received mixed reviews.

Molyneux also amassed an extensive Impressionist art collection, including paintings by Picasso, Monet, Manet and 17 by Renoir.

In 1955 they were sold as a lot to Ailsa Mellon Bruce, who in 1969 bequeathed the collection to the National Gallery of Art, Washington, D.C. Molyneux had a complicated personal life.

One of his early relationships was with Foreign Office diplomat Harold Nicolson, who helped finance the opening of the designer's first Paris salon.