Ebenezer Seaver (July 5, 1763 – March 1, 1844) was a U.S. Representative from Massachusetts. Born in Roxbury in the Province of Massachusetts Bay, Seaver graduated from Harvard University in 1784. He engaged in agricultural pursuits. He served as member of the State house of representatives 1794–1802. Seaver was elected as a Democratic-Republican to the Eighth and to the four succeeding Congresses (March 4, 1803 – March 3, 1813). He was one of six Democratic-Republican representatives to oppose the Twelfth Amendment to the United States Constitution. Seaver was an unsuccessful candidate for reelection in 1812 to the Thirteenth Congress. He served as member of the State constitutional convention in 1820. He was again a member of the State house of representatives in 1822, 1823, and 1826. He died in Roxbury, Massachusetts, March 1, 1844.