The 2024 Colorado Democratic presidential primary took place on March 5, 2024, as part of the Democratic Party primaries for the 2024 presidential election. 72 delegates to the Democratic National Convention were allocated to presidential candidates, with 15 additional unpledged delegates. The semi-closed primary was held on Super Tuesday alongside primaries in 14 other states and territories and its Republican counterpart.
Biden won the primary with 82.5%, receiving all 72 delegates, but significantly reduced from different primaries before and on the day, as the campaign for "noncommitted delegates" inspired by the Uncommitted National Movement won about 9% of the vote, and Dean Phillips and Marianne Williamson were also on the ballot.
The following candidates filed at the office of Secretary of State of Colorado:
The state Democratic Party also opted to submit a request for a "noncommitted delegate" voting option to the Secretary of State.