The 1950 United States Senate election in North Dakota took place on November 7, 1950. Incumbent Republican Senator Milton Young ran for re-election to a second term. In the Republican primary, he faced former Lieutenant Governor Thorstein H. Thoresen, who was endorsed by the Nonpartisan League. After winning the primary in a landslide, he faced State Senator Harry O'Brien, the Democratic nominee, in the general election. Aided by the national Republican landslide, Young defeated O'Brien in a landslide to win re-election.