Louisiana's 3rd State Senate district is one of 39 districts in the Louisiana State Senate.

It has been represented by Democrat Joseph Bouie Jr. since 2020, succeeding fellow Democrat Jean-Paul Morrell.

[3] District 3 covers some of eastern New Orleans (primarily Gentilly, West Lake Forest, and the Lower Ninth Ward), as well as smaller parts of St. Bernard and Jefferson Parishes, including some or all of Chalmette, Arabi, Harvey, and Marrero.

[4] Louisiana uses a jungle primary system.

If no candidate receives 50% in the first round of voting, when all candidates appear on the same ballot regardless of party, the top-two finishers advance to a runoff election.