Formose Mendy (born 2 January 2001) is a Senegalese professional footballer who plays as a defender for English club Watford on loan from French side Lorient, and the Senegal national team.
On 1 September 2025, Mendy joined Watford in English EFL Championship on a season-long loan, with an option to buy.
Mendy made his debut for Senegal against Bolivia in September 2022. He was non-playing member of Senegal's squad for the 2022 FIFA World Cup in Qatar.
In December 2023, he was named in Senegal's squad for the postponed 2023 Africa Cup of Nations held in the Ivory Coast.
Lorient