Ai Sugiyama (杉山愛 Sugiyama Ai, born July 5, 1975 in Yokohama) is a Japanese former professional tennis player. She reached No. 1 in women's doubles on the WTA Tour. Her career-high singles ranking was No. 8, achieved on February 9, 2004. In her career, she won 6 singles titles and 37 doubles titles, including three Grand Slam women's doubles titles (one with Frenchwoman Julie Halard-Decugis and two partnering Belgian Kim Clijsters). Sugiyama held the all-time record, for both male and female players, for her 62 consecutive Grand Slam main draw appearances, until surpassed by Roger Federer in 2015 Wimbledon Championship by playing his 63rd consecutive Grand Slam.