Muangthong United F.C.

Muangthong United Football Club (Thai: สโมสรฟุตบอลเมืองทอง ยูไนเต็ด) is a Thai professional football club based in Muang Thong Thani, Pak Kret district, Nonthaburi province. The club competes in the Thai League 2, the second tier of football league of Thailand. Muangthong United has participated in Thai League 1, the highest level of the Thai football league system since 2009 after having won the Thai Division 1 League title in 2008. After 17 years in the first tier league, the club experienced its first-ever relegation to the second tier in the 2025-26 season.

Muangthong United is one of Thailand's leading football clubs, having the biggest fan base with over 3.7 million followers on social media as of 14 November 2023. The club, also known as The Kirins was for a period one of the richest football clubs in Thailand.