John Robert Graham Pitkin | |
|---|---|
| United States Ambassador to Argentina | |
| In office 1889–1893 | |
| Preceded by | Bayless W. Hanna |
| Succeeded by | William I. Buchanan |
| Personal details | |
| Born | 1840-1841 New Orleans, Louisiana |
| Died | July 4, 1901 New Orleans, Louisiana |
| Nationality | American |
| Political party | Republican |
| Children | Helen Pitkin |
| Military service | |
| Allegiance |  Confederate States of America |
| Branch/service | Crescent Infantry Regiment |
| Rank | Private |
| Battles/wars | American Civil War |
John Robert Graham Pitkin, also known as John R. G. Pitkin, (1840-1841 – July 4, 1901) was an American diplomat and soldier.