The Thai football champions are the winners of the highest league in Thai football, which is currently the Thai League 1. Teams in bold are those who won the double of League Championship and Thai FA Cup, or the Asian Double of League Championship and AFC Champions League in that season.
Football was introduced into Thailand in 1897. In 1916, King Vajiravudh founded "The Football Association of Thailand under Patronage of His Majesty the King." After that the association joined the FIFA in 1925 and AFC in 1957.
The Thailand national football team competed at the 1956 Olympics
The first football stadium, Suphachalasai Stadium, was built in 1935. King's Cup, the first football cup was introduced in 1968. And then two years later, Queen's Cup, a national cup competition, started in 1970.