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.