Thailand

The team's predecessor, which operated under the name of Siam, was founded in 1915 and played its first unofficial match against a team of Europeans at the Royal Bangkok Sports Club Stadium on 20 December that year. The team played its first international match in 1930 against the Indochina national team, which included both South Vietnamese and French players.

Thailand appeared in the 1956 Summer Olympics in Melbourne, where their lost to Great Britain 0–9, was the largest to that point, thus failing to advance to the quarter-finals. In 1959, Thailand as the host won silver medals in the Southeast Asian Peninsular Games after losing 1–3 to South Vietnam in the final. In 1965, Thailand harbored its first distinct title: the very first place in the Southeast Asian Games. They made their second and latest appearance at the Summer Olympics in 1968, losing all three matches by at least 3 goals margin to Bulgaria, Guatemala, and Czechoslovakia hence en route to a first-round exit.

During the 1992 AFC Asian Cup qualification, Thailand gained a significant success defeating South Korea 2–1 and Bangladesh 1–0 to top the group and qualify to the 1992 AFC Asian Cup. The team's performance at the final tournament was drawing first two matches with Qatar and eventual 3rd place China then losing 0–4 to Saudi Arabia. In 1994, manager Thawatchai Sartjakul assembled a team that has been denounced as the "dream team" with players like Kiatisuk Senamuang, Tawan Sripan and Dusit Chalermsan.

In 1996, Thailand defeated Malaysia 1–0 and win the ASEAN Football Championship (then called the Tiger Cup) for the first time. Thailand were favorites to regain the crown in 2007, 2008 and 2012 only to lose tight finals to Singapore and Vietnam respectively.

The regional 1998 Tiger Cup saw Thailand met Indonesia in a match that ill-hearted players from both team deliberately making actions aimed to avoid facing hosts Vietnam in the semi-finals and undergoing technical burden of moving training bases from Ho Chi Minh City to Hanoi. FIFA fined both teams $40,000 for "violating the spirit of the game". Thailand eventually lost the match, inevitably encountered and failed to Vietnam in the semi-finals.

Thailand consecutively qualified to and participated in two AFC Asian Cup final tournaments both held within Western Asia in 1996 and 2000 when their "dream team" was beginning its golden period. Coincidentally in both editions, the team's opponents all came from Western Asia and they are Saudi Arabia, Lebanon, Iran and Iraq, with the latter two share the same group with Thailand twice. In both editions, Thailand made two draws and lost the rest, bottomed the group stage of the first and is the worst third-placed team of the second edition.

The final 2000 AFF Championship match between Thailand and Indonesia, at a sold-out Rajamangala, was almost a carbon copy of their group stage encounter. The War Elephants triumphed 4–1 again with Worrawoot setting up camp at the opponents' goal. The 28-year-old scored twice in their first match and in the final struck a hat-trick in the first 32 minutes. In the final 2002 AFF Cup final, Thailand again met Indonesia (who was now the host) and won the game in penalty shootout despite taking a 2–0 lead.

Thailand again qualified to the Asian Cup in 2004 and was put into a group with Japan, Iran and debutant Oman. Despite vast experiences in the Asian Cup, the team has yet to show a sign of improvement as they lost all matches and became the worst-performed team in the whole tournament.

The sign of improvement only came in the 2007 AFC Asian Cup when Thailand participated as a well-prepared co-host and was placed with the debutant Australia, Oman, and Iraq. The team managed a draw to Iraq and a historic win over Oman. With 4 points ahead, Thailand's chance to qualify for the next round for the first time since 1972 was all but shattered by the likes of Australia in a 0–4 demolition. The tournament witnessed the end of Thailand's recognizable generation with later retirements of Kiatisuk, Tawan, and Pipat.

In September 2008, Thailand signed a four-year contract with the English coach Peter Reid but Reid left his position by mutual consent after only a year in charge as his team fail to clinch the championship of 2008 AFF Championship after 2–3 on aggregate lost to Vietnam in the finals.

In September 2009, Bryan Robson agreed to coach Thailand in his first foray into international football management and was contracted to manage the team through to the 2014 World Cup. In November, Robson celebrated his first competitive match in charge of the team with an away victory against Singapore in a 2011 Asian Cup qualifying group match but then lose to the same opponent back home. Then, two goalless draws with Jordan and Iran in January 2010 and an 0–1 away lost to Iran in March all effectively ended the chance of qualifying for the 2011 AFC Asian Cup. In preparations for the 2010 AFF Championship, Robson led Thailand to victorious run against Singapore and Bob Houghton's India in a series of friendlies. However, when entering the tournament in December, he failed to bring Thailand past group A after managing only draws against Laos and Malaysia and losing to Indonesia. Robson resigned as Thailand's manager on 8 June 2011, citing health problems as the reason and was replaced by Winfried Schäfer, who would be the ninth German person to coach the Thailand team.

The new coach called up starlets for the 2014 World Cup qualifiers and have the starting set of matches losing minimal to Australia, defeating Oman 3–0 and drawing Saudi Arabia but did not make it after losing to these teams altogether in the second set. In the 2012 AFF Championship, Thailand topped their group and surpassed Malaysia in the semi-finals but handed the crown to Singapore in the finals. In the 2015 Asian Cup qualification, Thailand showed a setback with its defensive frailties exposed by Middle Eastern rivals (Iran, Kuwait, Lebanon) when losing all 6 games in the qualifiers, conceding 21 goals in the process.

In June 2013, Schäfer canceled his contract. The FA of Thailand appointed the former player Kiatisuk Senamuang as the new caretaker coach for the national team. His first ride was a friendly against China PR on 15 June, which Thailand surprisingly won 5–1.

In 2014, Thailand ended a 12-year drought of the AFF Championship title from the late goals by Charyl Chappuis and Chanathip Songkrasin which gave them a dramatic 4–3 aggregate victory over Malaysia in the second leg of the finals at Bukit Jalil. The team did not lose any match up until the second leg of the finals and often featured a tiki-taka playing style, for instance including 27 consecutive passes during the first leg of the finals against Malaysia. Kiatisuk consequently became the first person to win the ASEAN Football Championship as both a player and a coach. Thailand succeeded in protecting AFF Championship reign two years later in 2016, defeating Indonesia 3–2 aggregately despite losing the first leg.

In 2015, evasion fuelled hope for both the players and Thailand fans of finally reaching the World Cup tournament and tension is mounting as the national team commenced AFC's second round for 2018 World Cup qualification. Teerasil Dangda, Thailand's renowned striker, rejoined the rank of the national team after his loan with UD Almería ended earlier. Drawn in Group F along with Chinese Taipei, Iraq and Vietnam, who Thailand played its first match home against on 24 May and can only be won by a victory goal from a shot 20 yards away. They played a much easier match at the same opponent's home soil, winning 3–0. Thailand won both matches against Chinese Taipei and drew 2–2 both matches against Iraq, allowing them to qualify for the next round as group F winners. In the last round, Kiatisuk's men shared the same group with Australia, Japan, Saudi Arabia, UAE along with previous opponent, Iraq. Again, Thailand was eliminated without winning a match and recorded only two points out of ten matches.

Since taking over the administration by Somyot Poompanmoung, FA Thailand aims to drive men's national football team to be one of the leading teams in Asia by which there are concrete 20 years development plans and preparations. After the elimination from World Cup qualifiers, Kiatisuk resigned and Thailand appointed Milovan Rajevac as a coach, thus marked the first non-Brazilian/German/English team's chief. With the new coach, however, Thailand failed to defend its AFF Championship title in 2018 when losing Malaysia in the semi-finals by the away goals rule.

Ahead of 2019 AFC Asian Cup, Thailand was drawn into group A together with the host UAE, Bahrain and India. Rajevac oversaw Thailand in the commencing 1–4 loss to India. The Serbian coach was sacked and his assistant, Sirisak Yodyardthai became the interim coach on 7 January. Sirisak guided Thailand to a 1–0 win over Bahrain and a 1–1 draw with the host UAE, enough to move on to the knockout stage of the AFC Asian Cup for the first time in 47 years. Their success was greeted with congratulation from the FA. Thailand encountered China in the round of sixteen, taking an early lead but eventually lost 2–1 as China make their decisive respond.

After finishing in the fourth place of 2019 King's Cup and losing the rival Vietnam in that tournament, Sirisak had resigned and FA Thailand appointed the Japanese coach Akira Nishino, who had brought Japan to the round of 16 of 2018 FIFA World Cup, for replacement. This was the first-ever Asian coach becoming Thailand's head coach. The team was drawn into group G of the second round of 2022 World Cup qualification with other three Southeast Asian rivals: Vietnam, Malaysia, Indonesia; along with United Arab Emirates. Despite defeating Indonesia 3–0 and UAE 2–1, Thailand failed to revenge Vietnam when getting goalless draws in both legs, while losing Malaysia 1–2 in Bukit Jalil. With these results, Thailand could only get the third place in group G after five qualifying matches. After a one-year disruption due to COVID-19 pandemic, Thailand and other teams in group G had to play their remaining matches in Dubai, UAE. However, the team suffered a huge loss of key players when Chanathip Songkrasin was injured, while Teerasil Dangda and Theerathon Bunmathan refused to participate the qualification due to various reasons. Without these three players, Thailand showed a poor performance in Dubai - drawn the bottom place team Indonesia 2–2, then lost the UAE 1–3 and Malaysia 0–1, respectively; which eventually pushed the team down to the fourth place of the group G. Nishino did not come back to Thailand to explain the team's failure, but unilaterally returning to Japan, which made FA Thailand appoint Anurak Srikerd as the caretaker and consider sacking Nishino in upcoming days. On 29 July 2021, shortly after Nishino came back to Thailand, FA Thailand decided to terminate the contract with Nishino.

On 28 September 2021, Alexandré Pölking was appointed as the head coach of the Thailand national team, replacing Akira Nishino. Pölking's first task was the 2020 AFF Championship in December 2021 held in Singapore. Between 5 December 2021 and 1 January 2022, Polking accomplished the very task as he managed the War Elephants to win 6–2 on aggregate after being held to a 2–2 second-leg draw by Indonesia, guiding Thailand to win the AFF Championship for the sixth time. In the 2022 AFF Championship, Thailand defended their title on 16 January 2023, winning the tournament by a 3–2 aggregate score in the two-legged final against Vietnam to secure their seventh title. In October 2023, Thailand embarked on a European tour playing two friendlies against Georgia and Estonia and with star players like Chanathip Songkrasin, Nicholas Mickelson and Ekanit Panya injured and club team refused to released Teerasil Dangda and Theerathon Bunmathan, Supachok Sarachat, Sarach Yooyen, Pansa Hemviboon for international duties, Thailand have to relies on inexperience international players and also giving the opportunity for new young players a chanced to touched up for the future international matches. On 12 October 2023, Thailand suffered their worst defeat in the 21st century losing against Georgia 8–0 at the Mikheil Meskhi Stadium. In the next match against Estonia on 17 October, Jakkapan Praisuwan equalised it for Thailand for a hard fought 1–1 draw at the Lilleküla Stadium.

The 2026 FIFA World Cup qualification saw Thailand drawn in group C against South Korea, China and Singapore, with the target to be winning the second place to advance to the final round. However, Thailand would get off to a disastrous start, flopping at home to China 2–1 despite opened the scoring by Sarach Yooyen. This disastrous home loss ultimately sealed Pölking's fate, despite a 3–1 away victory over Singapore later on sent Thailand to second on goal difference; with the Brazilian tactician sacked for failing to live up to the target.

After a hurried attempt, Japanese manager Masatada Ishii was announced as Thailand's temporarily new head coach, with a contract lasted until the end of the 2023 AFC Asian Cup as he faced a daunting prospect of reviving the lacklustre Thai side to reach continental level. His first match, a friendly against his homeland Japan, saw Thailand thrashed 5–0 in the second half after an impressive first half display, increased negative feelings among Thai fans as the War Elephants faced a huge challenge in group F at the Asian Cup, with Saudi Arabia, Kyrgyzstan and Oman on the same boat.

Amidst drop of a huge pessimism, Thailand started their Asian Cup campaign against Kyrgyzstan to a bright note, winning 2–0 to mark Thailand's first win in an Asian Cup opening match. After a 2–0 victory over Kyrgyzstan, Thailand squared up against a far stronger Oman side, which was boosted by bright performances over the past three years and under the Croatian manager Branko Ivanković, an Asian football expert who never lost to Thailand in his coaching career. However, Thailand defied all expectation of an easy Omani triumph, resolutely defended throughout the match and several times created opportunities to end the game with a famous goalless shutout, giving Thailand four points and the country's early progression to the knockout stage. Thailand would then go on to produce its most famous game in their modern Asian Cup history, a brilliant counter-offensive tactic against Asian hegemon Saudi Arabia in the final group stage match, including a famous penalty save by Saranon Anuin as Thailand made a famous goalless draw to the Saudis, ending their losing streak that started in 2012 to the same opponent and, for the first time ever, Thailand gained a shutout record in the Asian Cup group stage. However, Thailand failed to end their miserable knockout stage record in the Asian Cup, losing 2–1 to Uzbekistan in the round of 16 to equal their 2019 result. Despite this exit, Thailand's bright performance in the tournament earned the team significant praises for their resoluteness and ability to adapt to difficult circumstances, and Masatada Ishii was appointed on a permanent basis, with the aim to help Thailand to qualify for the third round of the 2026 World Cup qualification and the 2027 AFC Asian Cup.