The 1999 Citrix Tennis Championships was an ATP men's tennis tournament held in Delray Beach, Florida, United States that was part of the World Series of the 1999 ATP Tour. It was the seventh edition of the tournament and was held from May 3 to May 10, 1999. Sixth-seeded Lleyton Hewitt won the singles title.
Finals
Singles
Lleyton Hewitt defeated Xavier Malisse 6–4, 6–7(2–7), 6–1
It was Hewitt's only singles title of the year and the 2nd of his career.
Doubles
Max Mirnyi / Nenad Zimonjić defeated Doug Flach / Brian MacPhie 7–6(7–3), 3–6, 6–3 It was Mirnyi's 4th title of the year and the 5th of his career. It was Zimonjić's only title of the year and the 1st of his career.