Trump
 Biden
 Tie/No Data
  
 Donald Trump
Republican
 Joe Biden
Democratic
 The 2020 United States presidential election in Tennessee was held on Tuesday, November 3, 2020, as part of the 2020 United States presidential election in which all 50 states plus the District of Columbia participated. Tennessee voters chose electors to represent them in the Electoral College via a popular vote, pitting the Republican Party's nominee, incumbent President Donald Trump, and running mate Vice President Mike Pence against Democratic Party nominee, former Vice President Joe Biden, and his running mate California Senator Kamala Harris. Tennessee has 11 electoral votes in the Electoral College.
 Trump won Tennessee with 60.66% of the vote, almost tied with his 60.72% vote share in 2016. Despite this, Biden got 37.4% of the vote, three points better than Hillary Clinton. Prior to the election, all 17 news organizations considered this a state Trump would win, or a safe red state. The Volunteer State has not supported a Democrat for president since 1996. Biden won the same counties as Clinton did: urban Shelby and Davidson counties—anchored by Memphis and Nashville, respectively—as well as majority-Black Haywood County. In addition, Trump performed somewhat better than polls anticipated, as they had Trump leading Biden by 55%–41%. Biden also became the first Democrat to win the presidency without Hardeman County.
 Despite this, Biden was able to improve his support in the Nashville metropolitan area, gaining 64.5% of the vote in Davidson County, the best Democratic performance in the county since FDR won 72.1% of the vote in 1944. At the same time, Biden also made gains in the Nashville suburban counties of Williamson, Rutherford, Wilson, Sumner, and Cheatham, performing considerably better than Hillary Clinton in 2016. For example, Biden lost Rutherford County, anchored by Murfreesboro, only by 15.4%, much lower than Clinton's 25.9-point loss in 2016. Additionally, he narrowed Trump's margins in Hamilton County—anchored by Chattanooga—only losing it by 9.7 points, the best Democratic performance there since Bill Clinton lost the county by 6.5% in 1996; and with 44.1% of the popular vote, the best Democratic percentage since Carter's 48% in 1976, consequently losing by 2.8 points. This is the first time a Democrat has even garnered 40% of the vote in Rutherford County since 2000, when favorite son Al Gore lost the county by 9.7 points while at the same time losing both his home state and the election.
 Per exit polls by the Associated Press, Trump's strength in Tennessee came from a 69% showing among Southern whites, who made up 84% of the electorate. Similarly, Trump carried white born-again/Evangelical Christians by 86%–12%. The state of Tennessee is entirely covered in the Bible Belt. The only strength Biden showed was with 88% of African-American voters. 65% of voters opposed removing Confederate statues from public places in Tennessee, and these voters backed Trump by 83%–15%.
 The Republican primary was on March 3, 2020. Former Tennessee senator Bob Corker was considered a potential primary opponent for Trump.
 Incumbent United States President Donald Trump was challenged by two candidates: former congressman Joe Walsh of Illinois, and former governor Bill Weld of Massachusetts. Walsh withdrew from the race prior to the primary. There was also an uncommitted option on the ballot. Trump won the state in a landslide victory over Walsh and Weld.
 The Democratic primary was on March 3, 2020. Elizabeth Warren, Bernie Sanders, and former Vice President Joe Biden were among the major declared candidates.
 Graphical summary
 Aggregate polls
 Polls
 Donald Trump vs. Michael Bloomberg
 Donald Trump vs. Pete Buttigieg
 Donald Trump vs. Bernie Sanders
 Donald Trump vs. Elizabeth Warren
 These slates of electors were nominated by each party in order to vote in the Electoral College should their candidates win the state:
 Trump won all three of Tennessee's Grand Divisions—West, Middle, and East Tennessee. Middle and East Tennessee are solidly Republican, while West Tennessee, owing to its high black population, was formerly loyal to the Democrats. It has become competitive for Republicans in recent elections. In 2016, Trump had won it with 48.93% to Clinton's 47.82%. Democrats had previously won in West Tennessee in 2004, 2008, and 2012.
 Trump won 7 of 9 congressional districts.
 Winning the state by 708,764 votes, Tennessee gave Trump his largest margin of victory by the number of votes nationally. This exceeded the 631,221-vote margin by which he won in Texas, marking the first time since 1988 (when Florida provided the largest margin of victory) where Texas did not provide the Republican presidential nominee with his widest margin of votes for a statewide victory. Additionally, this is the second consecutive election in which a nominee carried over 60% of Tennessee's vote, the first time since 1996 that Tennessee and neighboring Georgia did not vote for the same candidate, and the first time since 1980 that Tennessee was won by the Republicans while Georgia was won by the Democrats.