Duan Yingying (Chinese: 段莹莹; pinyin: Duàn Yíngyíng; born June 3, 1989 in Tianjin) is a professional Chinese tennis player playing in the ITF Women's Circuit. On May 20, 2013, she reached her highest WTA singles ranking of 104. On October 15, 2012, she also reached her highest WTA doubles ranking of 331.
Starting the year ranked #378 in the world, Duan's ranking would improve significantly to #128 by the year's end. Some of the highlights of her 2012 season included winning 4 ITF titles at the 25k level in Wellington, Changwon, Gimcheon and Goyang. Playing qualifying at the US Open, Duan had her first experience in a Grand Slam tournament. She would win her first qualifying round defeating Réka-Luca Jani, but would fall in the next round to Kirsten Flipkens. She received a wildcard to the 2012 Guangzhou International Women's Open and won her first WTA main draw match defeating Luksika Khumkum in the first round. Duan also achieved her best results in ITF challengers near the end of 2012, reaching the semifinals of 100K+H Ningbo and the finals of 100K Suzhou, losing both matches to top-100 veteran Su-Wei Hsieh.
During the televised commentary of her match against Caroline Wozniacki at the 2013 US Open, the commentators compared Duan's game to that of former World No. 1 Lindsay Davenport. They also began referring to her by the nickname of Baby Flower Chinese Davenport.