Martina Hingis and Nathalie Tauziat were the defending champions, but chose not to participate that year.
Tina Križan and Katarina Srebotnik were the defending champions but lost in the final 3–6, 7–5, 6–1 against Květa Hrdličková and Barbara Rittner.
Serena and Venus Williams defeated Julie Halard-Decugis and Ai Sugiyama in the final, 6-3, 6-2 to win the ladies' doubles tennis title at the 2000 Wimbledon Championships. They became the first pair of sisters to win the title. It was their third major title in doubles, and the third component in an eventual career Golden Slam in doubles. The Williams sisters had only played three events thus far into the season, and only entered the draw via a wildcard.
The 1999 Open Gaz de France doubles was the doubles event of the seventh edition of the Open GDF Suez; a WTA Tier II tournament held in Paris, France. Sabine Appelmans and Miriam Oremans were the defending champions but lost in the first round to Elena Likhovtseva and Ai Sugiyama.
The 1999 Dreamland Egypt Classic doubles was the doubles event of the only edition of the Dreamland Egypt Classic; a WTA Tier III tournament and then the most prestigious women's tennis tournament held in Africa. Laurence Courtois and Arantxa Sánchez Vicario won in the final 7–5, 1–6, 7–6(7–3) against Irina Spîrlea and Caroline Vis.
The 1999 Croatian Bol Ladies Open doubles was the doubles event of the sixth edition of the Croatian Bol Ladies Open, a WTA Tier IV tournament and the most prestigious women's tennis tournament held in Croatia. Laura Montalvo and Paola Suárez were the defending champions, Montalvo having won the last three doubles competitions in Bol, but neither competed this year.
The 1999 Internazionali Femminili di Palermo doubles was the doubles event of the twelfth edition of the second most prestigious women's tennis tournament held in Italy. Pavlina Nola and Elena Wagner were the defending champions, but Nola did not compete this year. Wagner therefore competed with Laurence Courtois as the third seed, and was defeated in the semifinals by second seeds Tina Križan and Katarina Srebotnik.
The 1999 SEAT Open was a women's tennis tournament played on indoor carpet courts in Kockelscheuer, Luxembourg which was part of Tier III of the 1999 WTA Tour. It was the fourth edition of the tournament and was held from 20 September until 26 September 1999. Qualifier Kim Clijsters won the singles title and earned $27,000 first-prize money.
The 1999 Generali Ladies Linz doubles was the tennis doubles event of the thirteenth edition of the most prestigious tournament in Austria. Alexandra Fusai and Nathalie Tauziat were the two-time defending champions, but they were defeated in the semifinals by Tina Križan and Larisa Neiland.
Serena and Venus Williams were the defending champions but withdrew in the third round.
Martina Hingis and Mary Pierce were the defending champions, but neither participated in this tournament.
Julie Halard-Decugis and Ai Sugiyama were the defending champions, but did not compete this year.
Martina Hingis and Anna Kournikova were the defending champions, but competed this year with different partners. Hingis partnered with Mary Pierce and finished the tournament as runners-up, while Kournikova teamed up with Barbara Schett and lost in semifinals to Lisa Raymond and Rennae Stubbs.
Virginia Ruano Pascual and Paola Suárez were the defending champions and successfully defended their title, defeating Lisa Raymond and Rennae Stubbs 6–4, 6–2 in the final.
Martina Hingis and Jana Novotná were the defending champions, but none of them competed this year. Novotná also retired at the end of the 1999 season.
Virginia Ruano Pascual and Paola Suárez were the defending champions, but Ruano Pascual did not compete this year. Suárez teamed up with Fabiola Zuluaga and lost in semifinals to Tina Križan and Tatiana Perebiynis.
Tina Križan and Katarina Srebotnik were the defending champions, but lost in semifinals to tournament winners Silvia Farina and Rita Grande.
Elena Bovina and Daniela Hantuchová were the defending champions, but none competed this year. Bovina decided to focus on the singles tournament, while Hantuchová competed in Linz at the same week.
Émilie Loit and Åsa Carlsson were the defending champions, but Loit did not compete this year. Carlsson teamed up with Silvia Farina Elia and lost in the semifinals to Yayuk Basuki and Caroline Vis.
Jelena Kostanić and Michaela Paštiková were the defending champions, but Paštiková did not compete this year. Kostanić teamed up with Tina Pisnik and lost in the semifinals to Tina Križan and Katarina Srebotnik.
Irina Spîrlea 
Caroline Vis 
Katarina Srebotnik 
