The 2024 Oregon Democratic presidential primary was held on May 21, 2024, as part of the Democratic Party primaries for the 2024 presidential election.

[1][2] 78 delegates to the Democratic National Convention were allocated to Biden.

[3] Incumbent President Joe Biden won the primary.

Incumbent President Joe Biden announced on April 25, 2023, his bid for a second term.

He faced a primary challenge from author, progressive activist, and 2020 presidential candidate Marianne Williamson.