Adelaide Avery Claflin (July 28, 1846 – May 31, 1931) was an American woman suffragist and ordained minister.
She became an ordained Unitarian minister at Meadville, Pennsylvania in 1897. She preached in Connecticut, Canada and the West. She was interested in liberal religion, natural science study, literary study and languages. She served on the School Board of Quincy, Massachusetts, 1884-87. She was interested in woman suffrage and education of women. Claflin was a member of the executive board of the Massachusetts Woman Suffrage Association. She was connected with the Boston Equal Suffrage Association. She lectured often on suffrage with Lucy Stone, Mary Livermore, and Julia Ward Howe. She campaigned in Rhode Island, 1886. Claflin was the author of occasional editorials and articles in Boston dailies, and a contributor to Woman's Journal. She was a director of the New England Women's Club, and served as president of Boston's Castilian Club.[1]