The Sultanes de Monterrey are a professional baseball club in the Mexican League (LMB) based in Monterrey, Mexico. Established in 1939 as Carta Blanca, the Sultanes have won ten LMB titles, most recently in 2018. From 2019 to 2025, the club also fielded a team in the Mexican Pacific League (LMP), which plays a winter league schedule; they were the easternmost team to participate in the LMP.