Loulou de La Falaise (4 May 1948 – 5 November 2011) was a fashion muse and designer of fashion, accessories and jewellery associated with Yves Saint Laurent. Author Judith Thurman, writing in The New Yorker magazine, called La Falaise "the quintessential Rive Gauche haute bohmienne". The daughter of an Anglo-Irish fashion model and a French marquis, she helped inspire Saint Laurent's 1966 women's tuxedo Le Smoking and his see-through blouses, according to The Independent.