Portrait of Lady Meux is a name given to several full-length portraits by James Abbott McNeill Whistler. Valerie Susan Meux, née Langdon, (1847 – 1910) was a Victorian socialite and the wife of the London brewer, Sir Henry Meux (pronounced "Mews"). She claimed to have been an actress, but was apparently on the stage for only a single season. She is believed to have met Sir Henry at the Casino de Venise in Holburn, where she worked as a banjo-playing barmaid and prostitute under the name Val Reece.