Harriet Connor Brown (September 11, 1872 – July 9, 1962) was an American women's rights activist and an author.

After marrying Herbert D. Brown in 1897, they worked together to write reports for government agencies such as the Civil Service, Congress, and William Howard Taft's Commission on Economy and Efficiency.

[1] As part of the Women's International League for Peace and Freedom, Brown testified to the United States Congress in 1921 and 1922 to eliminate funding for the Chemical Warfare Service due to how much money families spend on war, women wanting to abolish all funding for the military's future wars, and being against non-combatants being killed by chemical warfare.

Allene Sumner of the Rock Island Argus said, "Because Harriet Connor Brown – of Washington, D. C., was not too busy to listen to the tales of older people, not too interested in and sure of the superiority of everything modern and a little scornful of any worth in the good old days, she has won fame and fortune.

"[6] Former Vice President Charles G. Dawes said, Here is a fine picture of the New England character as it reacted 200 years after the landing of the Pilgrim Fathers to a new environment.

[6] Brown also wrote Report on the Mineral Resources of Cuba in 1901 for the U. S. Geological Survey, World Disarmament in 1921 for the U.S. Government Printing Office, and America Menaced by Militarism, An Appeal to Women.