The 1999 Lipton Championships was a tennis tournament played on outdoor hard courts. It was the 15th edition of the Miami Masters and was part of the Super 9 of the 1999 ATP Tour and of Tier I of the 1999 WTA Tour. Both the men's and women's events took place at the Tennis Center at Crandon Park in Key Biscayne, Florida in the United States from March 15 through March 29, 1999.

WTA entrants

Seeds

Other entrants

The following players received wildcards into the singles main draw: The following players received wildcards into the doubles main draw: The following players received entry from the singles qualifying draw: The following player received entry as a lucky loser: The following players received entry from the doubles qualifying draw:

Finals

Men's singles

Richard Krajicek defeated 🇫🇷 Sébastien Grosjean, 4–6, 6–1, 6–2, 7–5

Women's singles

🇺🇸 Venus Williams defeated 🇺🇸 Serena Williams, 6–1, 4–6, 6–4

Men's doubles

Wayne Black / 🇦🇺 Sandon Stolle defeated 🇩🇪 Boris Becker / 🇺🇸 Jan-Michael Gambill, 6–1, 6–1

Women's doubles

Martina Hingis / 🇨🇿 Jana Novotná defeated 🇺🇸 Mary Joe Fernández / 🇺🇸 Monica Seles, 0–6, 6–4, 7–6(7–1)