Grace Gallatin Seton Thompson (January 28, 1872 – March 19, 1959) was an American writer and suffragist.

In 1888 she began writing articles for San Francisco newspapers under the pen name of Dorothy Dodge, and in 1892 graduated from Packer Collegiate Institute, in Brooklyn, NY.

[2] In 1900, Seton published her first book, A Woman Tenderfoot, which described her trip on horseback through the Rocky Mountains.

[4][5] She later organized and directed a women's motor unit to aid soldiers in France during the first World War.

[6] As chair she established the Biblioteca Femina, a collection of volumes by women from all over the world, which was later donated to the Northwestern University Library.