1999–2000 Thailand Provincial League

The 1999–2000 Pro League Football League for the five-year pilot of the Football Association of Thailand. The management team of the tournament in the first 3 years there will be no relegation. The Organising Committee has selected the teams from various sports associations in each sector.
 * Northern Region had Nakhon Sawan, Chiangmai
 * North Eastern Region had Sisaket, Udon Thani, Nakhon Ratchasima
 * Central Region had Bangkok, Nakhon Pathom, Suphanburi
 * Southern Region had Satun, Surat Thani,  Pattani, Songkhla