John Brinckerhoff Jackson (August 19, 1862 – December 20, 1920)[1] was an American lawyer and diplomat who spent most of his career in Europe and the Middle East.

[9] After his graduation from the Naval Academy, he spent two years with the European Squadron, a part of the United States Navy.

[9] Shortly after his marriage in 1886, he was ordered to the join the Pacific Squadron, but due to his new wife's ill health, on June 30, 1886, he resigned his commission as an ensign.

[9] In 1890, Jackson began his long diplomatic career when President Benjamin Harrison appointed him second secretary of the legation in Germany under U.S. Minister William Walter Phelps.

"[13] While secretary of the legation, he frequently served, for a cumulative total of twenty months, as chargé d'affaires ad interim in charge of the embassy.

[8] Following his service in Germany, President Theodore Roosevelt appointed Jackson U.S. Minister to Greece,[14] Romania and Serbia on October 13, 1902, during a recess of the U.S. Senate.

On August 12, 1911, shortly before his recall from Havana, he was again appointed Minister to Romania, Serbia and Bulgaria, however this time he was a resident at Bucharest.

[15] In February 1912, he was the special representative of the president with rank of ambassador at Sofia for the coming of age of the Crown Prince Boris of Bulgaria.

On January 16, 1915, he was made a special agent of the Department of State to assist James W. Gerard, the American Ambassador, in matters relating to the war.

[9] After a prolonged illness, Jackson died on December 20, 1920, in Montreux,[22] a Swiss town on the shoreline of Lake Geneva at the foot of the Alps.