Mildred Mary Ratcliffe FSSI (1899–1988) was an English painter, commercial artist & calligrapher, known for her poster designs for the Post Office Savings Bank.

[1] In the mid-1920s she transferred to their new publicity unit, spending the rest of her career there designing posters and other promotional material.

[1] In 1950 Ratcliffe scribed and illuminated, in gold, a 'Book of Acknowledgement', for the Benenden Civil Service Chest Hospital's Appeal Fund.

[1] For most of her life, Ratcliffe lived alone in a flat in West Kensington, London, before retiring to a cottage at 1, Mill Street, Loose, Kent in 1959.

[1] Maidstone Art Society award a Mildred Ratcliffe Prize for 'Best in Show' at their annual exhibition.