2019 Louisiana State Senate election

The 2019 Louisiana State Senate election was held on October 12, 2019, with runoff elections held on November 16, 2019. All 39 seats in the Louisiana State Senate were up for election to four-year terms. Under the Louisiana primary system, all candidates appeared on the same ballot, regardless of party. Five districts held runoff elections due to no candidate receiving a majority of the vote in the general election.

The Republican Party expanded their majority by two seats over the Democratic Party, establishing a veto-proof majority in the Senate against Democratic Governor John Bel Edwards. The party failed to gain a veto-proof majority in the concurrent House elections, however.

Republicans

 * 1) District 8: John Alario was term-limited.
 * 2) District 9: Conrad Appel was term-limited.
 * 3) District 10: Danny Martiny was term-limited.
 * 4) District 11: Jack Donahue was term-limited.
 * 5) District 13: Dale M. Erdey was term-limited.
 * 6) District 16: Dan Claitor was term-limited.
 * 7) District 20: Norby Chabert was term-limited.
 * 8) District 25: Dan Morrish was term-limited.
 * 9) District 30: John R. Smith was term-limited.
 * 10) District 31: Gerald Long was term-limited.
 * 11) District 32: Neil Riser was term-limited.
 * 12) District 33: Mike Walsworth was term-limited.

Democrats

 * 1) District 3: Jean-Paul Morrell was term-limited.
 * 2) District 4: Wesley T. Bishop retired.
 * 3) District 14: Yvonne Dorsey-Colomb was term-limited.
 * 4) District 28: Eric LaFleur was term-limited.
 * 5) District 34: Francis C. Thompson was term-limited.

District 1
Incumbent Republican Sharon Hewitt ran unopposed.

District 4
Democrat Jimmy Harris ran unopposed.

District 7
Incumbent Democrat Troy Carter ran unopposed.

District 8
Republican Patrick Connick ran unopposed.

District 17
Incumbent Republican Rick Ward III ran unopposed.

District 18
Incumbent Republican Eddie J. Lambert ran unopposed.

District 19
Incumbent Democrat Gary Smith Jr. ran unopposed.

District 21
Incumbent Republican Bret Allain ran unopposed.

District 22
Incumbent Republican Fred Mills ran unopposed.

District 23
Incumbent Republican Page Cortez ran unopposed.

District 27
Incumbent Republican Ronnie Johns ran unopposed.

District 29
Incumbent Democrat Jay Luneau ran unopposed.

District 34
Democrat Katrina Jackson ran unopposed.