The 1980 United States Senate election in Colorado was held on November 4, 1980. Incumbent Democratic U.S. Senator
Gary Hart won re-election to a second term despite Republican nominee
Ronald Reagan winning the state over Democratic President
Jimmy Carter in the
concurrent presidential election. This election was the first time since
1948 that an incumbent Democratic Senator from Colorado was re-elected or won re-election and the first time since
1938 that an incumbent Democratic Senator from Colorado was re-elected or won re-election for this seat.