Andy Souwer (born 9 November 1982) is a Dutch former welterweight kickboxer and mixed martial artist. He is a two-time K-1 World MAX champion (2005, 2007) and four-time Shootboxing World tournament champion as well as a former It’s Showtime 70MAX world champion, fighting out of Mejiro Gym in Amsterdam.
Souwer started kickboxing when he was 7 years old at Ling Ho Gym in Den Bosch. He had his first kickboxing fight when he was 8 years old. He won all his fights, in all the weight classes he fought and became Dutch Champion.
In 1998, only 16 years old, Souwer fought his first A-Class MTBN Title match, which he won on points. When he was 18 he had three different World titles.
Souwer first went to Japan in 2002 to compete in the S-Cup 2002 shoot boxing competition where he became the winner after defeating Chinese sanshou title challenger Zheng Yuhao. He made his K-1 debut the next year and won his first K-1 World Max champion title in 2005.
Andy Souwer is the 2007 K-1 World Max Champion. He defeated Gago Drago followed by Albert Kraus and finally Masato to win the championship. He faced Masato again in Masato’s retirement match at the Dynamite!! 2009 event, and lost.
He won the Shoot Boxing World Tournament 2012 in Tokyo, Japan on 17 November 2012 After beating Kem Sitsongpeenong by a majority decision (29-29, 29-28, 30-28) in the quarter-final stage and knocking out Hiroki Shishido in the semis, he defeated stablemate and student Henri van Opstal by unanimous decision (30-29, 30-29, 30-28) in the final.
At the K-1 World MAX 2012 World Championship Tournament Final in Athens, Greece on 15 December 2012, Souwer outpointed Andy Ristie in the quarter-finals before losing a unanimous decision to Artur Kyshenko in the semis, in what was the fourth fight of their rivalry.
Souwer led a team of shoot boxers against a team of Pancrase fighters at Shoot Boxing 2013 – Act 4 on 23 June 2013.
Souwer was scheduled to fight Maximo Suarez at Enfusion Live: Tenerife in Tenerife, Spain on 13 July 2013 but withdrew for undisclosed reasons.
He took a unanimous decision over Yasuhiro Kido at the K-1 World MAX 2013 World Championship Tournament Final 16 in Mallorca, Spain on 14 September 2013.
Souwer made his professional boxing debut on 17 March 2014, winning by TKO after his opponent Paata Varduashvili retired in his corner at the end of the fourth round in Den Bosch, Netherlands.
He defeated Yuri Bessmertny via UD at Legend 3: Pour Homme in Milan, Italy on 5 April 2014.
Souwer announced his retirement following his loss to Marat Grigorian at ONE Championship: First Strike Kallang, Singapore on 15 October 2021.
2010 W.F.C.A. World Thaiboxing Super Welterweight (-70 kg) Champion
2012 It’s Showtime “- 70 kg” World Champion
It’s Showtime World Champion (70 kg)
K-1 World MAX 2009 Runner Up
K-1 World MAX 2007 Champion
K-1 World MAX 2006 Runner Up
K-1 World MAX 2005 Champion
A.R.D.D.D. World Super welterweight Champion
F.I.M.C. World Super welterweight Champion
W.P.K.A. World Super welterweight Champion
I.S.K.A. World Super welterweight Champion
W.K.A. World Super welterweight Champion
W.M.T.A. World Super welterweight Champion
2012 S-cup World Champion
2008 S-cup World Champion
2006 S-cup Runner Up
2004 S-cup World Champion
2002 S-cup World Champion
W.S.B.A. World Super Welterweight Champion