Khaosai Galaxy (Thai: ??????? ?????????, born, May 15, 1959) is a former Thai professional super flyweight (also known as junior bantamweight) boxer and Muaythai kickboxer.
Khaosai defended his WBA world title 19 times in seven years (1984–1991), winning 16 of his title fights by knockouts.
As a member of the International Boxing Hall of Fame, he is widely considered as one of the greatest boxing champions of all time.
He is listed #19 on Ring Magazine's list of 100 greatest punchers of all time and named him the 43rd greatest fighter of the past 80 years in 2002.