The 1990 United States Senate election in Tennessee was held on November 6, 1990, to select the U.S. Senator from the state of Tennessee. Democratic U.S. Senator Al Gore won re-election to a second term in a landslide, sweeping every county in the state.
As of 2024, this was the last time the Democrats won a U.S. Senate election in Tennessee, and also the most recent U.S. Senate election in Tennessee in which several counties, including Knox County and Hamilton County, went to the Democratic candidate.