Moses McClean (June 17, 1804 – September 30, 1870) was aDemocratic member of theU.S. House of Representatives fromPennsylvania.

Born on his father William McLean's farm in Carroll's Tract, nearGettysburg, Pennsylvania, on June 17, 1804, McClean studied law, was admitted to the bar in 1825, and commenced practice in Gettysburg.
McClean was elected as a Democrat to theTwenty-ninth Congress and supported the declaration of war againstMexico during theMexican–American War. During theBattle of Gettysburg in July 1863, his brick home on Baltimore Street was struck by an errantUnionartillery shell, but McClean and his family were unharmed.
After his term expired, he resumed the practice of law in Gettysburg. He returned to politics briefly as a conservative member of thePennsylvania House of Representatives in 1855, representing theKnow Nothing political movement.
He then continued the practice of law until his death in Gettysburg in 1870.
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| Preceded by | Member of the U.S. House of Representatives fromPennsylvania's 15th congressional district 1845–1847 | Succeeded by |