The 2025 Marietta mayoral election was held on November 4, 2025, to elect the mayor of Marietta, Georgia. Incumbent mayor Steve Tumlin was re-elected to a fifth term.
Tumlin launched his re-election campaign in early August 2025, focusing on affordable housing as a campaign issue. Foster entered the race as one of the youngest mayoral candidates in Marietta's history, at 24 years old. As Tumlin is 78, Foster focused his campaign on the generational differences between the two, promising to bring "new and different leadership." Foster used platforms such as TikTok and Instagram to promote his campaign.