Patricia Hy-Boulais (born 22 August 1965) is a former tennis player. She turned professional on 12 October 1986. Early in her career she represented Hong Kong (since the beginning until the end of the 1987 season). She became a citizen of Canada in 1991. However, she represented Canada since the beginning of the 1988 season. Her best performance at a Grand Slam came when she got to the quarter-finals of the 1992 US Open, defeating Eva Švíglerová, Judith Wiesner, Jennifer Capriati and Helena Suková before losing to eventual champion Monica Seles.
After Hy-Boulais did it in 1992, Canada did not have another woman to survive into the second week at the French Open until Aleksandra Wozniak did it in 2009.[1]
Hy-Boulais represented her new country at the 1996 Summer Olympics in Atlanta, Georgia, where she was eliminated in the second round by the number one seed Monica Seles. Hy-Boulais reached her highest ranking in the WTA Tour on 8 March 1993, when she became the number 28 of the world.
Hy-Boulais's daughter Isabelle is a top Canadian tennis prospect.[2]
Patricia Hy-Boulais had an athletic family. Her father was a tennis player for Cambodia and served as the team captain. He also has competed in the Davis Cup for Cambodia. Her mother was a national badminton champion for Cambodia.[3]
Hong Kong (1986-88)
Canada (1988-98)
Adriana Villagrán-Reami
Ludmila Richterová
Ann Grossman
Rennae Stubbs
Mariaan De Swardt
Ruxandra Dragomir
Amanda Brown
Nana Smith
Marianne van der Torre
Monica Weber
Claudia Hernández
María José Llorca 
Anne Aallonen
