The 2020 United States presidential election in New Mexico 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. New Mexico 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. New Mexico has five electoral votes in the Electoral College.

Bernalillo County is the most populous county in the U.S. state of New Mexico. As of the 2020 census, the population was 676,444. The county seat, Albuquerque, is the most populous city in New Mexico.