James M. Wallace (1750 – December 17, 1823) was an American politician who served as a Democratic-Republican member of the U.S. House of Representatives for Pennsylvania's 3rd congressional district from 1815 to 1821.
He pursued preparatory studies in Philadelphia, and participated in the American Revolutionary War as a member of military units commanded by Captain James Roger, Colonel Timothy Green, and Captain William Brown.
One of the commissioners of the county from 1799 to 1801, he subsequently served as a member of the Pennsylvania House of Representatives from 1806 to 1810.
Wallace was then elected as a Republican to the Fourteenth Congress to fill the vacancy caused by the declination to serve of Amos Slaymaker.
Reelected to the Fifteenth and Sixteenth Congresses, he declined to be a candidate for renomination and retired to his farm.