

Introduction
Cyrus King (September 6, 1772 – April 25, 1817) was a U.S. Representative from Massachusetts, half brother of Rufus King.
Early life and education
Born in Scarborough, Maine (then a district of Massachusetts), King attended Phillips Academy, Andover, Massachusetts, and was graduated from Columbia College, New York City, in 1794. He studied law.
Career
King served as private secretary to Rufus King when he was United States Minister to England in 1796. He completed law studies in Biddeford, Maine and was admitted to the bar in 1797, commencing his law practice in Saco, Maine. He served as major general of the Sixth Division, Massachusetts Militia. King was one of the founders of Thornton Academy, Saco, Maine.
King was elected as a Federalist to the Thirteenth and Fourteenth Congresses (March 4, 1813 – March 3, 1817).
Death
He returned to Saco, Maine, where he died on April 25, 1817. He was interred in Laurel Hill Cemetery.