Sarah Katherine Holmes Stone, better known as Kate Stone (January 8, 1841 – December 28, 1907), was an American diarist and community leader.
She was the daughter of a wealthy cotton farmer and slaveholder in the Southern United States.
She is remembered in American history and literature for her diary, Brokenburn: The Journal of Kate Stone, 1861-1865, edited by John Q.
Anderson, which she kept during the time of the American Civil War, printed in 1955, which she kept continuously from May 1861 to November 1865; shorter supplements date from 1867 and 1868.
In addition to the diaries of two other ladies of the upper southern society, Mary Boykin Chesnut and Sarah Morgan, Stone's journal since its first publication has often been used by historians to illustrate the Southern world.