Harriet Granger Hulet Walker (10 September 1841 – 13 January 1917) was an American hospital administrator and leader in the temperance movement.

Her mother's husband, the Honorable Fletcher Hulet, was a "prosperous businessman" who owned a quarry that sold grindstones.

Their home on Hennepin Avenue was remembered in the History of the City of Minneapolis, Minnesota by Isaac Atwater as a place of "refined and generous hospitality" and the nursery for their children.

[1] Walker was president of Northwestern Hospital, now Abbott Northwestern Hospital of Allina Health, from 1862 to 1917, president of the Bethany Home now Walker Methodist Home, and worked with or was a member of the Women's Council of the City of Minneapolis, Hennepin Avenue Methodist Church, the Non-Partisan National Women's Christian Temperance Union, and the Minneapolis Association Opposed to the Further Extension of Suffrage to Women.

The State Theatre in downtown Minneapolis is on the site today, renovated with a few other theaters in the area, and is part of one of the city's entertainment districts.