Mariette Leslie Cotton (1866–1947) was an American artist who usually gave her name as Mrs. Leslie Cotton. A student of William Merritt Chase, Carolus-Duran, and Jean-Jacques Henner , she worked mainly in Paris but also maintained studios in London and New York. By birth and marriage she possessed a level of wealth and social prestige that, together with her artistic skill, enabled her to obtain lucrative commissions from prominent individuals. The portraits she painted were praised for their veracity, style, and fine technique. Their subjects included kings, aristocrats, celebrities, and members of wealthy families. Late in her career a critic wrote that her "popularity has a sound basis, for her portraits combine such abstract artistic qualities as effective and infinitely varied design