Mark Langdon Hill (June 30, 1772 – November 26, 1842) was United States Representative from Massachusetts and from Maine.
He was born in Biddeford (then a district of Massachusetts) on June 30, 1772.
He attended the public schools, then became a merchant and shipbuilder in Phippsburg.
He was an overseer and trustee of Bowdoin College.
He is the nephew of John Langdon.
NH governor, Senator and patriot.
Hill was elected a member of the Massachusetts House of Representatives,and served in the Massachusetts State Senate.
He served as judge of the court of common pleas in 1810.
He was elected a member of the American Antiquarian Society in 1816.
He was elected as a Democratic-Republican from Massachusetts to the Sixteenth Congress (March 4, 1819 – March 4, 1821).
Hill and John Holmes were the two of the seven representatives from the district of Maine willing to vote for the Missouri compromise, which on a 90-87 vote allowed Maine to become a state at the cost of letting Missouri be a slave state.
They were both strongly attacked in the Maine press for this compromise.
Hill was elected as a Democratic-Republican to the Seventeenth Congress from Maine after the state was admitted to the Union (March 4, 1821 – March 4, 1823).
He was postmaster of Phippsburg 1819-1824.
He was appointed as a collector of customs at Bath in 1824.
Hill died in Phippsburg on November 26, 1842.
His interment was in the churchyard of the Congregational Church in Phippsburg Center.