| John Wallace Riddle Jr. | |
| Ambassador From: | United States |
| Country: | Argentina |
| President: | Warren G. Harding Calvin Coolidge |
| Term Start: | March 8, 1922 |
| Term End: | May 28, 1925 |
| Predecessor: | Frederic Jesup Stimson |
| Successor: | Peter Augustus Jay |
| Ambassador From1: | United States |
| Country1: | Russia |
| President1: | Theodore Roosevelt William Howard Taft |
| Term Start1: | February 8, 1907 |
| Term End1: | September 8, 1909 |
| Predecessor1: | George von Lengerke Meyer |
| Successor1: | William Woodville Rockhill |
| Minister From2: | United States |
| Country2: | Serbia |
| Term Start2: | May 7, 1906 |
| Term End2: | January 23, 1907 |
| President2: | Theodore Roosevelt |
| Predecessor2: | John Brinkerhoff Jackson |
| Successor2: | Horace G. Knowles |
| Minister From3: | United States |
| Country3: | Romania |
| Term Start3: | October 3, 1905 |
| Term End3: | January 23, 1907 |
| President3: | Theodore Roosevelt |
| Predecessor3: | John Brinkerhoff Jackson |
| Successor3: | Horace G. Knowles |
| Birth Date: | 1864 7, mf=yes |
| Birth Place: | Philadelphia, Pennsylvania |
| Death Place: | Farmington, Connecticut |
| Education: | Harvard University (BA) Columbia Law School Sciences Po Collège de France |
| Parents: | John Wallace Riddle Sr. Rebecca Blair McClure |
| Signature: | Signature of John Wallace Riddle Jr. (1864–1941).png |
John Wallace Riddle Jr. (July 12, 1864 - December 8, 1941) was an American diplomat. His first diplomatic assignment was as agent/consul general in Egypt (1904–1905).[1] He was then sent to Romania and Serbia in 1905 to serve as Envoy Extraordinary and Minister Plenipotentiary (residing in Bucharest[1]), followed by postings as U.S. ambassador to Russia (1907–1909) and ambassador to Argentina (1922–1925).[1] [2]
Born in Philadelphia,[3] Riddle was the son of John Wallace Riddle, Sr. and Rebecca Blair McClure; he was born after his father's untimely death. A few years later, Rebecca McClure became the second wife of Charles Eugene Flandrau and relocated to St. Paul, Minnesota where Riddle grew up alongside two half-brothers and two step-sisters.[4] He graduated from Harvard in 1887, attended law school at Columbia through 1890, and studied international law, diplomacy, and languages at École Libre des Sciences Politiques and the Collège de France in Paris through 1893.[5]
In 1916 Riddle married American architect and heiress Theodate Pope Riddle.[6]
He died in Farmington, Connecticut, at the age of 77.