The 2025 Mississippi State Senate special election was held on November 4, 2025, to elect 9 of 52 members of the Mississippi State Senate. Special elections were called in 9 districts due to court-ordered redistricting, in addition a special election was held on April 15 to fill a vacancy in one district. Primary elections will be held on August 5 and, if needed, runoff elections will be held on December 2.
Democrats flipped two seats, breaking the Republican supermajority.
The election was called after court-ordered redistricting caused the state Senate map to be redrawn, as it was found to diminish the voting power of the state's African American population. The new map creates two new majority black districts, one each in DeSoto and Forrest County, both without incumbents. It then goes to court for approval, despite objections from lawmakers in DeSoto County and some Democrats, where it will await a ruling on the next day. In the first week of May, a panel of three judges approved the redrawn map from the Mississippi Election Commission and allowed 10 out of 15 districts to proceed with the special election.