Under the three-year deal, which runs to the end of the 2023-24 season, Winamax branding will feature on the front of players’ shirts.
Winamax, which previously partnered with Bordeaux between 2015 and 2019, will also benefit from branding placement on surfaces inside the team’s Nouveau Stade de Bordeaux stadium.
In addition, the operator will work with the club on a range of fan-focused initiatives, such as poker tournaments and betting odds offers.
“The club is proud to find Winamax again as a major sponsor; the trust and loyalty of this major player in online betting is tremendous proof of the central place occupied by FC Girondins de Bordeaux in the French football landscape,” Bordeaux president Gérard Lopez said.
Winamax Julien Huber added: “The season ahead marks the start of a new era. Winamax is as proud as it is enthusiastic at the idea of supporting the club, among the oldest in Ligue 1, in its new project.”