Mary H J Henderson (born 1874 – 6 November 1938) was an administrator with Elsie Inglis's Scottish Women's Hospitals for Foreign Service in the Balkans in World War I, earning five medals. She founded social work and civic groups led by women, in Dundee, Aberdeen and London and served on charitable bodies including Dundee War Relief Fund, and worked for women's suffrage. She was also a war poet.