The 2020 Wyoming Democratic presidential caucuses had been scheduled to take place on April 4, 2020 in the Democratic Party primaries and caucuses for the 2020 presidential election, but in-person voting was cancelled due to the COVID-19 pandemic and mail-in voting was extended to April 17, 2020.

On the count of first choices, Biden and Sanders had taken approximately 66% and 24% of the vote, while 9% were spread between six other candidates who had withdrawn from the race, including 4% for senator Elizabeth Warren.

On the final count, around 2% of votes were inactive, as they did not include a choice for one of the candidates that had overcome the 15 percent hurdle.

The Wyoming Democratic Party published its final approved delegate selection plan on October 9, 2019, outlining that April 4, a Saturday, would be the first determining date for its party-run 2020 caucuses (along with the Alaska, Hawaii and Louisiana primaries on the same day) and voting would be done with ranked-choice votes.

[2] Because of the COVID-19 pandemic the party decided on March 22, 2020 that all voting had to occur by mail instead and that ballots received by April 17 would be counted.