John Joseph Seerley (March 13, 1852 – February 23, 1931) was a one-term Democratic U.S. Representative from Iowa's 1st congressional district in southeastern Iowa. Born on a farm near Toulon, Illinois, Seerley moved to Iowa in 1854 with his parents, who settled on a farm in Keokuk County. He attended the common schools, and graduated from the University of Iowa at Iowa City in 1875. While serving as principal of Iowa City High School in 1876, he enrolled in the University of Iowa College of Law, graduating in 1877. He was admitted to the bar in 1877 and commenced practice in Burlington, Iowa.