Florine Stettheimer''' (August 29, 1871 – May 11, 1944) was an American painter, designer and poet.
With her sisters, Carrie and Ettie, she hosted a salon for modernists in Manhattan, which included Marcel Duchamp, Henry McBride, and Georgia O'Keeffe. She confined most exhibitions of her own work to these gatherings, occasionally submitting work to the Society of Independent Artists. Florine shared original poems at her salons, and a book of her work, ''Crystal Flowers'', was published privately and posthumously by her sister Ettie Stettheimer in 1949. It was reissued to acclaim in 2010.