2025–26 Muangthong United F.C. season

The 2025–26 season is Muangthong United Football Club's 19th season since they took over from Nongchok Pittaya Nusorn Football Club in 2007. It is the club's 17th consecutive season in the top flight of the Thai football league system since being promoted in the 2009 season.

On June 25, 2024, Thai League announced the program for the upcoming 2025–26 Thai League 1 season. The season commenced on August 9, 2024, and will conclude on April 27, 2025.