Bầu cử tổng thống Hoa Kỳ tại Louisiana năm 2020

The 2020 United States presidential election in Louisiana 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. Louisiana 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. Louisiana has eight electoral votes in the Electoral College.

Trump won Louisiana on the day of the election 58.5% to 39.9%, a margin of 18.6%, down from 19.4% in 2016. Per exit polls by the Associated Press, his strength in Louisiana came from White born-again/Evangelical Christians as well as conservative Roman Catholics who have a high population in Louisiana, who supported Trump with 91% and 80% of their vote. On the issue of abortion, 57% of voters believed abortion should be illegal in most or all cases. As is the case in most southern states, there was a stark racial divide in voting for this election: Whites supported Trump by 77%–22% while African Americans supported Biden by 88%–10%.