Thailand Open may refer to one of several sporting tournaments:
The ATP Tour is the sole worldwide top-tier tennis tour for men organized by the Association of Tennis Professionals founded in 1990 that replaced the earlier dual Grand Prix Circuit and WCT Circuit. The second-tier tour is the ATP Challenger Tour and the third-tier is the ITF Men's World Tennis Tour. The equivalent women's organisation is the WTA Tour.
The ATP Challenger Tour, known until the end of 2008 as the ATP Challenger Series, is a series of international men's professional tennis tournaments. The Challenger Tour events are the second-highest tier of tennis competition, behind the ATP Tour. The ITF World Tennis Tour tournaments are on the entry-level of international professional tennis competition. The ATP Challenger Tour is administered by the Association of Tennis Professionals. Players who succeed on the ATP Challenger Tour earn sufficient ranking points to become eligible for main draw or qualifying draw entry at ATP Tour tournaments. Players on the Challenger Tour are usually young players looking to advance their careers, those who fail to qualify for ATP events, or former ATP players looking to get back into the big tour.
The ITF Women's World Tennis Tour, previously known as the ITF Women's Circuit, is a series of professional tennis tournaments run by the International Tennis Federation for female professional tennis players.
WTA 125 tournaments are an international series of professional women's tennis tournaments organized by the Women's Tennis Association since 2012.
Peangtarn "Earth" Plipuech is a Thai tennis player.
Zhu Lin is a Chinese tennis player. On 18 September 2023, Zhu reached a career-high singles ranking of world No. 31. She attained her best WTA doubles ranking of No. 80 on 2 October 2023. Zhu has won the 2023 Thailand Open in singles and the 2019 Jiangxi Open in doubles. She has also won one singles and one doubles title in WTA 125 tournaments, as well as 15 singles and six doubles titles on the ITF Circuit.
Nao Hibino is a Japanese professional tennis player. She has been ranked as high as No. 56 in singles and No. 43 in doubles by the WTA. Hibino has won three singles and three doubles titles on the WTA Tour. She has also won eight singles and ten doubles tournaments on the ITF Women's World Tennis Tour.
The 2015 Hua Hin Championships was a professional tennis tournament played on indoor hard courts. It was the first edition of the tournament, which was part of the 2015 ATP Challenger Tour and part of 2015 WTA 125K series. It took place in Hua Hin, Thailand between 2 November to 8 November 2015 for the men's tournament, and between 9 November to 15 November 2015 for the women's tournament.
The Taiwan Open was a professional women's tennis tournament played on indoor hard courts in Taipei, Taiwan. The tournament began in 2016 and was held in Kaohsiung, Taiwan for its first year. Affiliated with the Women's Tennis Association (WTA), the Taiwan Open was an International-level tournament on the WTA Tour. The Taiwan Open was discontinued from the 2019 season, with the Hua Hin Championships replacing it on the calendar.
The WTA 125K series is the secondary professional tennis circuit organised by the Women's Tennis Association. The 2017 WTA 125K series calendar consisted of eight tournaments, each with a total prize fund of $125,000. After 2016, San Antonio Open folded while two new tournaments were introduced in Zhengzhou and Mumbai. The Hua Hin Championships returned after the previous year's edition was cancelled due to the death of Thai monarch, Bhumibol Adulyadej.
Wang Xiyu is a Chinese professional tennis player. she reached her career-high WTA singles ranking of world No. 49 on 9 January 2023, and a doubles ranking of No. 148 on 6 May 2024.
The 2017 Hua Hin Championships was a professional tennis tournament played on outdoor hard courts. It was the 2nd edition of the tournament, which was part of the 2017 ATP Challenger Tour and part of 2017 WTA 125K series. It took place in Hua Hin, Thailand from 6 November to 12 November 2017 for the women's tournament, and from 20 November to 26 November 2017 for the men's tournament.
The WTA 125K series is the secondary professional tennis circuit organised by the Women's Tennis Association. The 2018 WTA 125K series calendar consisted of ten tournaments, each with a total prize fund of $125,000 each except the Oracle Challenger Series that offer $150,000 in prize money. After 2017, Dalian Women's Tennis Open and Hawaii Tennis Open were scrapped while Hua Hin Championships was replaced by Thailand Open, an international WTA event to take place at the same venue, beginning February 2019. 5 new tournaments were introduced in Newport Beach, Indian Wells, Chicago, Houston and Anning which was earlier an ITF event.
The 2019 Thailand Open, sponsored by Toyota, was a tennis tournament played on outdoor hard courts. It was the 1st edition of the Hua Hin Championships as part of the WTA International tournaments of the 2019 WTA Tour. It took place at the True Arena Hua Hin in Hua Hin, Thailand, from 28 January 2019 to 3 February 2019.
The Hua Hin Championships is a women's tennis tournament on the WTA Tour played on outdoor hardcourts in Hua Hin, Thailand. It is currently held in February, following the Australian Open.
The 2020 Thailand Open was a Women's Tennis Association (WTA) tournament played on outdoor hard courts. It was the 2nd edition of the Hua Hin Championships as part of the WTA International tournaments of the 2020 WTA Tour. It took place at the True Arena Hua Hin in Hua Hin, Thailand, from 10 February to 16 February 2020.
Bumpei Sato is a retired Japanese professional tennis player. He competed primarily on the ATP Challenger Tour and ITF Futures Tour, both in singles and doubles. He reached his highest ATP singles ranking of World No. 661 on October 20, 2014, and his highest ATP doubles ranking of World No. 304 on June 9, 2014.
Diana Maximovna Shnaider is a Russian professional tennis player. She has career-high rankings in singles of world No. 47, achieved on 20 May 2024, in doubles of No. 88 achieved on 10 June 2024.
Yūichi Sugita 
Stéphane Robert 
John Millman 
Yaroslava Shvedova 
Belinda Bencic 
Hsieh Su-wei 
Andre Begemann 
Purav Raja 
Sanchai Ratiwatana 
Austin Krajicek 
Liang Chen 
Dalila Jakupović 
Irina Khromacheva