Frances Evelyn "Daisy" Greville, Countess of Warwick (née Maynard; 10 December 1861 – 26 July 1938) was a British socialite and philanthropist. Although embedded in late-Victorian British high society, she was also a campaigning socialist, supporting many schemes to aid the less well-off in education, housing, employment, and pay. She established colleges for the education of women in agriculture and market gardening, first in Reading, then in Studley. She established a needlework school and employment scheme in Essex as well as using her ancestral homes to host events and schemes for the benefit of her tenants and workers. Greville was a long-term confidant or mistress to the Prince of Wales, who later became King Edward VII.