Monica Niculescu, Romanian tennis player
Monica Niculescu (born 25 September 1987) is a Romanian professional tennis player. She has been ranked by the Women's Tennis Association as high as 28th in singles and 11th in doubles. Niculescu has won several titles in tennis tournaments: three singles and ten doubles titles in the WTA Tour, one singles and one doubles title at WTA 125 tournaments, as well as 19 singles and 22 doubles titles on the ITF Women's Circuit.

She enjoyed relative success in singles tennis, ranking within the top 30s for several years, but her best achievements are in doubles. Niculescu made the Grand Slam doubles final at the Wimbledon 2017 tournament, together with Chan Hao-ching. She also managed to reach at least the quarterfinals in all other Grand Slams in doubles tennis. She enjoyed success in the WTA 1000 tournaments, getting into three finals (doubles), six semifinals (5 doubles), and 12 quarterfinals (11 doubles). Of her singles results, reaching the 4th round is her best Grand Slam result (2011 US Open and 2015 Wimbledon Championships).