Bertha Merrill "B" Holt (August 16, 1916 – June 18, 2010) was an American politician who represented Alamance and Rockingham counties in the North Carolina State House of Representatives from 1975 to 1993, where she championed North Carolina's failed attempt to ratify the Equal Rights Amendment and led the successful effort to remove the exemption of husbands from the state's rape laws. In addition, she was active in the Episcopal Church and was a founding member of the Alamance Women's Political Caucus and the Woman's Resource Center.