Christian Dior was a French fashion designer who revolutionized women's fashion in the 1940s with his 'New Look' design. He was the founder of the House of Dior, one of the most influential fashion houses in the world. His designs were characterized by a feminine silhouette, emphasizing the curves of the female body. He is widely credited with popularizing the A-line skirt and introducing the concept of ready-to-wear clothing.