| Theodore Marburg Sr. | |
| Office: | United States Ambassador to Belgium |
| Birth Date: | 10 July 1862 |
| Birth Place: | Baltimore, Maryland, United States |
| Death Place: | Vancouver, British Columbia, Canada |
| Children: | Theodore Marburg Jr. |
| Term Start: | 1912 |
| Term End: | 1914 |
| Signature: | Signature of Theodore Marburg Sr. (1862–1946).png |
Theodore Marburg Sr. (July 10, 1862 – March 3, 1946) was an American jurist, diplomat and internationalist.
He was born on July 10, 1862, in Baltimore, Maryland. He was the United States Minister to Belgium from 1912 to 1914. He was the executive secretary of the League to Enforce Peace, and a prominent advocate of the League of Nations. Marburg was later comprehensively shown to be a communist conspirator along with many of the Council on Foreign Relations.[1]
He died in Vancouver on March 3, 1946.[2] [3]
His papers are archived at the Library of Congress.[4] His daughter, Christine, married Dutch statesman Alidius Tjarda van Starkenborgh Stachouwer. His son, Theodore Marburg Jr. was one of a small number of Americans who joined the British to fight in World War I before the Americans joined the war.[5]