| State Senate1: | Louisiana |
| District1: | 18th |
| Term Start1: | 1994 |
| Term End1: | 2004 |
| Order2: | Member of Louisiana Public Service Commission |
| Birth Name: | Louis Joseph Lambert, Jr. |
| Party: | Democratic |
| Alma Mater: | Louisiana State University (BA)Loyola University (LLB) |
| Profession: | Attorney |
Louis Lambert is a politician, lawyer, and teacher from Prairieville, Louisiana. He is best known for his campaign for the 1979 Louisiana gubernatorial election, which he lost to David Treen in one of the closest elections in recent memory. By losing this election, Lambert became the first Democrat to lose a general election campaign for governor in Louisiana since Reconstruction.
Lambert attended Louisiana State University for his undergraduate degree before receiving his LLB from Loyola University.
In addition to running for governor, Lambert also served as a public service commissioner and state senator in Louisiana.