Blair McClenachan | |
|---|---|
 | |
| Member of the U.S. House of Representatives from Pennsylvania | |
| In office March 4, 1797 – March 3, 1799 | |
| Preceded by | Frederick Muhlenberg |
| Succeeded by | Michael Leib |
| Constituency | 2nd district |
| Member of the Pennsylvania House of Representatives | |
| In office 1790–1795 | |
| Personal details | |
| Born | 1734 Kingdom of Ireland |
| Died | May 8, 1812 (aged 77–78) Philadelphia, Pennsylvania, U.S. |
| Political party | Democratic-Republican |
| Profession | Merchant |
Blair McClenachan (1734 – May 8, 1812) was an Irish-born American merchant and politician from Pennsylvania. He served one term in the United States House of Representatives from 1797 to 1799. Previously, he served in the Pennsylvania House of Representatives.