Helen Osborne Storrow (September 22, 1864 – November 12, 1944) was a prominent American philanthropist, early Girl Scout leader, and chair of the World Committee of the World Association of Girl Guides and Girl Scouts (WAGGGS) for eight years. She founded the First National Girl Scout Leaders' Training in Long Pond, Massachusetts; headed the leaders' training camp at Foxlease, UK; and donated the first of the WAGGGS World centres, Our Chalet. She was married to James J. Storrow, a prominent banker, who was the second national president of the Boy Scouts of America.