Xavier Malisse, ranked 45th in the world, plays on Sunday evening Belgian time, while Justine Henin and Yanina Wickmayer have matches on Monday morning Belgian time.
Xavier Malisse is the first Belgian to play. He meets Pablo Andujar (ranked 70th) of Spain on court 10.
Justine Henin, ranked 13th in the world, will be in action against a qualifier in the Hisense Arena. The Belgian's match is the fourth on the schedule after two men's matches and one woman's match. The first match starts at one o 'clock Belgian time.
Yanina Wickmayer, ranked 23rd in the world, will play an evening match against Jarmila Groth of Australia in the Rod Laver Arena. Groth is ranked 40th.
In all seven Belgians are taking part in the Australian Open: Kirsten Flipkens, Kim Clijsters, Justine Henin, Yanina Wickmayer and Xavier Malisse.