James Xavier McLanahan was an American lawyer and politician who served two terms as a Democratic member of the U.S. House of Representatives for Pennsylvania's 16th congressional district from 1849 to 1853.
- Occupation
- politician, lawyer
- Position held
- United States representative, member of the Pennsylvania State Senate
- Citizenship
- United States
- Born
- 1809, May 17, 1809
- Died
- December 16, 1861
