Ayutthaya United

Sena Municipality

Sena Municipality football club was established in 2007. They are the local football team of Sena district, Ayutthaya and they played in amateur football in Thailand called "Royal football cup".

Khor Royal Cup

In 2008, Sena Municipality football club took part in Khor Royal Cup. In 2007/08 season, Sena Municipality were in round of 16 before losing to Assumption Sriracha School football club 2–3. In 2008/09, they again reached the round of 16 before losing to Hua-Hin Municipality F.C. 0–1.

In Khor royal cup 2013, Sena Municipality reached the semi-final. They have a match with Nakhon Ratchasima Municipality Sport School Football Club. Sena Municipality defeated to them 4–2 but still earned a promotion to Khǒr Royal Cup.

Khǒr Royal Cup

In 2014s, Sena Municipality football club played in Khǒr Royal Cup for the first time and they reached the round of 16. They were defeated by Institute of Physical Education Bangkok F.C. 1–2. In 2015s, Sena Municipality advanced to the semi-final, with promotion to the Thailand Regional League Division for the winner. In semi-final, despite being defeated by Institute of Physical Education Samut Sakhon F.C., they still gained promotion because of problems in the other semi-final between Air Technical Training School and Pak Chong School Alumni Association F.C. Sena Municipality subsequently got promoted.

Ayutthaya United

After Sena Municipality got promote to Regional league division. They requested patent to be corporation called "Ayutthaya United (2015) Company limited" and change club name to Ayutthaya United. The team plays their home matches at Senabodee Stadium, Sena district.

On 19 March 2016, Ayutthaya United played their first football league match at Nakhon Sawan Province Stadium with Nakhon Sawan F.C. Ayutthaya United won 1–0 by the goal of Rungroj Sawangsri, former Thailand national defender. So, he was the first player who score a goal for Ayutthaya United in professional level.

On 7 December 2016, Ayutthaya Warrior were collapsed to combine with Ayutthaya United.