John Hahn (October 30, 1776 – February 26, 1823) was an American politician from Pennsylvania who served as a member of the U.S. House of Representatives for Pennsylvania's 2nd congressional district from 1815 to 1817.
John Hahn was born in New Hanover Township, Pennsylvania.
He resumed the practice of medicine and also engaged in agricultural pursuits.
He died in New Hanover Township in 1823, and was interred in Falkner Swamp Graveyard.
This article about a member of the United States House of Representatives from Pennsylvania is a stub.