Steffi Graf defeated Martina Hingis 4–6, 7–5, 6–2 to win the Women's Singles tennis title at the 1999 French Open. Graf became the first player in the Open Era to defeat the three top ranked players in the same Grand Slam tournament; defeating No. 2 Lindsay Davenport in the quarterfinals, No. 3 Seles in the semifinals and No. 1 Hingis in the final. Hingis missed a chance to complete a career Grand Slam in singles. Arantxa Sánchez Vicario was the defending champion, but lost to Hingis in the semifinals.
Graf equalled Chris Evert's record of nine French Open final appearances, and extended her record of total Open Era Grand Slam singles victories to 22 (a record surpassed by Serena Williams in 2017). This would end up being the last Grand Slam title Graf would ever win, as well as being the last French Open she would ever appear in. This was also the first Grand Slam appearance for future World No. 1 and four-time French Open champion Justine Henin.