Adelaide Sophia Hoodless (née Addie Hunter; February 27, 1858 - February 26, 1910) was a Canadian educational reformer whose work helped shape the development of domestic science in Canada.

Active in Hamilton, Ontario, she became a prominent public speaker, advocate, and organizer during a period of rapid change for women and families. Hoodless played a central role in the establishment of several major Canadian women's organizations, including the Women's Institute, the National Council of Women of Canada, the Young Women's