1851 United States Senate election in Massachusetts

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1851 United States Senate election in Massachusetts

← 1845 January 14–April 24, 1851 1857 →
40 members of the Massachusetts Senate 396 members of the Massachusetts House Majority vote of each house needed to win
Nominee Charles Sumner Robert C. Winthrop Party Free Soil Whig Senate 23 14 Percentage 60.53% 36.84% House 193 166 Percentage 50.26% 43.23%
Senator before election Robert C. Winthrop Whig Elected Senator Charles Sumner Free Soil

The 1851 United States Senate election in Massachusetts was held during January 1851. Free Soil Party candidate Charles Sumner was elected by a coalition of Free-Soil and Democratic legislators over Whig incumbent Robert C. Winthrop, who had been appointed to finish the term of retiring Senator Daniel Webster.

At the time, Massachusetts elected United States senators by a majority vote of each separate house of the Massachusetts General Court, the House and the Senate.