Louisa Knapp Curtis (October 21, 1851 – February 25, 1910), (also known as Louisa Knapp), was an American columnist and the first editor of the Ladies' Home Journal from 1883 to 1889. It became one of the most popular magazines published in the United States and reached a circulation of one million within ten years. Curtis turned over the editorship to Edward Bok in 1889 but she continued to author a column and provide oversight.