Ding Ning (simplified Chinese: 丁宁; traditional Chinese: 丁寧; pinyin: Dīng Níng; born 20 June 1990) is a Chinese table tennis player. She was the winner of women's singles in the 2011 World Table Tennis Championships. At the 2015 World Table Tennis Championships, Ding Ning won her second world title in women's singles by defeating her compatriot Liu Shiwen 4–3 in the final. Ding Ning at the 2017 World Table Tennis Championships in Düsseldorf defeated Zhu Yuling 4–2 in the final, becoming World Champion for the third time. She won the women's table tennis singles gold medal at the 2016 Summer Olympics at the Rio Olympics where she beat compatriot Li Xiaoxia in the women's singles final.
In the Olympic Singles final against compatriot Li Xiaoxia, Austrian umpire Paola Bongelli repeatedly cautioned Ding Ning for her backhand tomahawk serve. Bongelli deducted 3 penalty points from Ding Ning leading her to break down in tears in the fourth set. The decision from Bongelli affected the game, Ding's composure and her timing, and caused Ding to lose the final. After the game Ding Ning stated, "I had an obstacle today, and not only from the opponent but from the judge as well," said Ding. "I was affected by the judge. After the first one (point penalty), I tried to keep cool but could not hold it after the second. The judge was too strict. I always serve the ball like this. I have done that for the last two years and, even from the first game of the Olympics, I have served like this. I do not know what to say. As soon as I raised my hand to serve, she sentenced me with a service violation."