The multi-year deal will begin in 2019 and brings together three of New Orleans’ entertainment brands.
As part of the partnership, Harrah’s will develop a Saints branded area on site, with this site also being used specifically as an official post-game destination.
The Saints have become the sixth NFL side to secure an advertising deal with a casino.
New Orleans Saints and Pelicans President Dennis Lauscha said: "We are proud to align ourselves with a brand such as Harrah’s New Orleans Casino that is an industry leader not only nationally but on a local level as well.
"Located in the Heart of Downtown New Orleans, Harrah’s vision for development and commitment to the city mirror that of the Saints and Pelicans and we could not be happier about this partnership."
