The Owen Lovejoy House is a historic house museum on East Peru Street in Princeton, Illinois. Built in 1838, it was for many years home to Owen Lovejoy, a prominent abolitionist and congressman.

Lovejoy (1811-1864) had two unsuccessful attempts at running for the U.S. House of Representatives in the 1840s, Lovejoy was elected to the House in 1856 where he gained a reputation for his fiery antislavery speeches. During the 1840s and 1850s, Lovejoy also used his home to harbor slaves on their way north and faced prosecution several times. It was widely known in Illinois that Lovejoy was “in charge” at Princeton and that fugitives passing through Princeton from slavery to freedom were riding the “Lovejoy Line.” He was quite proud of his opportunities to help slaves flee to freedom and admitted this publicly, not as a boast, but to defy the supporters of slavery