Mabel Florence Lethbridge BEM (7 July 1900 – 14 July 1968) was a 20th-century English writer and business woman. She is the youngest person to date to receive the British Empire Medal, an award affiliated to the Order of the British Empire, for her services in the Great War as a munitions factory worker. She was severely injured when a shell she was packing exploded and described her experiences in a series of autobiographies.