2023 Louisiana State Senate election

The 2023 Louisiana State Senate election was held on October 14, 2023, with runoff elections held on November 18, 2023. All 39 seats in the Louisiana State Senate were up for election to four-year terms. It was held concurrently with elections for all statewide offices and the Louisiana House of Representatives.

Under Louisiana's jungle primary system, all candidates appear on the same ballot, regardless of party, and voters may vote for any candidate, regardless of their party affiliation.

Background
In the 2019 state legislature elections, Republicans expanded their majorities in both chambers to 68 in the House and 27 in the Senate. Going into the 2023 elections, Republicans held a two-thirds supermajority in both the Senate and the House.

The 2023 election was the first election held under new district maps following redistricting as a result of the 2020 census.

Retirements
Eleven incumbents did not seek re-election.

Democrats

 * 1) District 19: Gary Smith Jr. was term-limited.
 * 2) District 39: Gregory Tarver was term-limited.

Republicans

 * 1) District 1: Sharon Hewitt retired to run for governor.
 * 2) District 6: Bodi White was term-limited.
 * 3) District 13: J. Rogers Pope retired.
 * 4) District 21: Bret Allain was term-limited.
 * 5) District 22: Fred Mills was term-limited.
 * 6) District 23: Page Cortez was term-limited.
 * 7) District 31: Louie Bernard retired.
 * 8) District 37: Barrow Peacock was term-limited.
 * 9) District 38: Barry Milligan retired.

In primary election
One incumbent senator, a Republican, was defeated in the October 14 jungle primary.

Republicans

 * 1) District 36: Robert Mills lost renomination to Adam Bass.