The 1948 United States Senate election in Minnesota took place on November 2, 1948. It was the first election held for Minnesota's Class 2 seat in the United States Senate since the Minnesota Democratic Party and the Farmer-Labor Party of Minnesota merged in 1944 to form the Minnesota Democratic-Farmer-Labor Party. Democratic Mayor of Minneapolis and future Vice President Hubert H. Humphrey defeated incumbent Republican Joseph H. Ball, who sought a third term in the Senate. This is the first time a Democrat won a Senate seat in Minnesota through popular vote election.

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1948 United States Senate election in Minnesota

← 1942 November 2, 1948 1954 →

Nominee Hubert H. Humphrey Joseph H. Ball Party Democratic (DFL) Republican Popular vote 729,494 485,801 Percentage 59.78% 39.81%

County results Humphrey:      50–60%      60–70%      70–80% Ball:      50–60%      60–70%

U.S. senator before election Joseph H. Ball Republican Elected U.S. Senator Hubert H. Humphrey Democratic (DFL)

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• United States Senate elections, 1948 and 1949