Alexander Campbell (October 4, 1814 – August 8, 1898) was a member of the US House of Representatives.
Cambell was born in Franklin County, Pennsylvania. A former ironworker, he became wealthy managing mines and steel mills. He was the first mayor of LaSalle, Illinois and in the Illinois House of Representatives before entering the US House. He was a delegate to the 1862 Illinois Constitutional Convention.
He served one term as an independent. His term in Congress lasted from 1875-1877.
He is remembered for being one of the leading figures in the Greenback currency movement to replace bank currency with United States Notes in an effort to place labor on an equal footing with capital in the structure of government.