Robert Harrison | |
|---|---|
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| Personal details | |
| Born | 1745 Charles County, Maryland, British America |
| Died | April 2, 1790 (aged 44–45) Charles County, Maryland, U.S. |
| Political party | Federalist |
| Occupation | Attorney Judge |
| Military service | |
| Allegiance |  United States of America |
| Branch/service | Virginia Militia Continental Army |
| Years of service | 1774-1775 (Militia) 1775-1781 (Army) |
| Rank | Lieutenant Colonel |
| Unit | Fairfax Independent Company (Militia) Staff of General George Washington (Army) |
| Battles/wars | American Revolution |
Robert Hanson Harrison (1745 – April 2, 1790) was an American Army officer, attorney, and judge. He was a Continental Army veteran of the American Revolution and is most notable for his service as George Washington's military secretary, the de facto chief of staff of Washington's headquarters for most of the war.