John Peter Sophocleus is an American economist and libertarian political activist.
Sophocleus has taught economics at Clemson University, Auburn University, and Auburn University Montgomery. He has been twice nominated to the Who's Who Among American Teachers. He is an adjunct faculty member of the Mises Institute and occasionally lectures there, usually on United States tariff history. Sophocleus generally teaches the principles of microeconomics.
His 1988 article "The Social Cost of Rent-seeking" with David Laband, published in Public Choice, has been cited by Peter Leeson,Gordon Tullock and others.
In 1996, he was the Libertarian Party candidate for U.S. House of Representatives in Alabama's 3rd congressional district, opposing Republican Bob Riley.
In 2002, Sophocleus entered the Alabama gubernatorial race on the Libertarian Party of Alabama's ticket against incumbent Don Siegelman and previous opponent Bob Riley. In the 2002 race, which was one of the closest in Alabama's history, Sophocleus received 23,242 votes (~2%), a number which was greater than the margin of victory in the race.