Ayutthaya United Football Club () is a Thai professional football club based in Sena, Phra Nakhon Si Ayutthaya province. The club competes in the Thai League 1, the top tier of Thai football league system after promotion as runner-up. The club currently plays their home matches at Ayutthaya Province Stadium.
Sena Municipality Football Club was established in 2007. They are the local football team of Sena district, Ayutthaya and they played in the "Royal football Cup". In 2008, Sena Municipality took part in the Khor Royal Cup. They were in round of 16 before losing to Assumption College Sriracha football club 2âÂÂ3. In 2008âÂÂ09, they again reached the round of 16 before losing to Hua-Hin Municipality 0âÂÂ1.
In 2013, Sena Municipality reached the semi-final. They lost to Korat United but earned promotion to the KhÃÂr Royal Cup. In 2014, Sena Municipality football club played in KhÃÂr Royal Cup for the first time. In 2015, Sena Municipality advanced to the semi-final. Despite being defeated by Institute of Physical Education Samut Sakhon, they gained promotion.
After Sena Municipality got promoted to the regional division, they changed the club name to Ayutthaya United. The club played their home matches at Senabodee Stadium. On 19 March 2016, Ayutthaya United played their first match at Nakhon Sawan Province Stadium with Nakhon Sawan. Ayutthaya United won 1âÂÂ0 by the goal of Rungroj Sawangsri. On 7 December 2016, Ayutthaya Warrior merged with Ayutthaya United.
On 26 April 2025, Ayutthaya United secured promotion to Thai League 1 for the first time in their history, after defeating Bangkok FC 5âÂÂ1 and finishing the 2024âÂÂ25 Thai League 2 season as runners-up.
Head coaches throughout years (2015âÂÂpresent)