| John Cameron Monjo | |
| Office1: | 18th United States Ambassador to Pakistan |
| President1: | George H. W. Bush Bill Clinton |
| Term Start1: | November 10, 1992 |
| Term End1: | September 10, 1995 |
| Predecessor1: | Nicholas Platt |
| Successor1: | Thomas W. Simons Jr. |
| Office2: | 11th United States Ambassador to Indonesia |
| President2: | George H. W. Bush |
| Term Start2: | May 31, 1989 |
| Term End2: | July 18, 1992 |
| Predecessor2: | Paul Wolfowitz |
| Successor2: | Robert L. Barry |
| Office3: | 11th United States Ambassador to Malaysia |
| President3: | Ronald Reagan George H. W. Bush |
| Term Start3: | June 10, 1987 |
| Term End3: | April 22, 1989 |
| Predecessor3: | Thomas P. Shoesmith |
| Successor3: | Paul Matthews Cleveland |
| Birth Date: | 17 July 1931 |
| Birth Place: | Stamford, Connecticut |
John Cameron Monjo (born July 17, 1931) is an American diplomat who served as the United States Ambassador to Malaysia from 1987 to 1989, the United States Ambassador to Indonesia from 1989 to 1992 and the United States Ambassador to Pakistan from 1992 to 1995.[1] [2]