| Frederic Jesup Stimson | |
| Order: | 1st |
| Ambassador From: | United States |
| Country: | Argentina |
| Term Start: | January 8, 1915 |
| Term End: | April 21, 1921 |
| Predecessor: | John W. Garrett |
| Successor: | John W. Riddle |
| President: | Woodrow Wilson |
| Birth Date: | 20 July 1855 |
| Birth Place: | Dedham, Massachusetts |
| Death Place: | Dedham, Massachusetts |
| Resting Place: | Old Village Cemetery |
| Party: | Democratic |
| Education: | Harvard University (A.B., LL.B., LL.D.) |
| Profession: | Writer, lawyer, diplomat |
| Signature: | Signature of Frederic Jesup Stimson (1855–1943).png |
Frederic Jesup Stimson (July 20, 1855 – November 19, 1943) was an American writer and lawyer, who served as the United States Ambassador to Argentina from 1915 to 1921.
Stimson was a Harvard Law graduate and writer of several influential books on law, and also a novelist specializing in historical romances, sometimes writing under the pen name "J.S. of Dale".
Stimson served as the United States Ambassador to Argentina from 1915 to 1921. He was the first U.S. envoy to Argentina to hold the title "Ambassador", the previous envoys having held the title "Envoy Extraordinary and Minister Plenipotentiary".
Stimson was born in Dedham, Massachusetts on July 20, 1855. He later purchashed the home built by Fisher Ames.
Stimson had two wives: Elizabeth Bradlee Abbot and Mabel Ashhurst. He married Abbot in 1881, and had two children with her: Mildred Stimson (April 23, 1883 – December 17, 1966) and Margaret "Lorna" Stimson (January 3, 1889 – July 12, 1956). Following Abbot's death in 1896, Stimson married Ashhurst in 1902.He died at his home in Dedham on November 19, 1943. He is buried in lot EI3 at the Old Village Cemetery.