| John Callan O'Laughlin | |
| Birth Date: | 11 January 1873 |
| Birth Place: | Washington, D.C. |
| Death Place: | Washington, D.C. |
| Resting Place: | Arlington National Cemetery |
| Occupation: | Journalist |
| Office: | United States Assistant Secretary of State |
| Term Start: | January 28, 1909 |
| Term End: | March 5, 1909 |
John Callan O'Laughlin (January 11, 1873 – March 14, 1949) was a journalist and longtime publisher of the Army and Navy Journal.[1]
John Callan O'Laughlin was born in Washington, D.C., on January 11, 1873.[2]
He served as United States Assistant Secretary of State from January 28, 1909, to March 5, 1909.[3]
He died at Walter Reed General Hospital on March 14, 1949.[4]