The 2018 Women's World Chess Championship Match was a match held between Tan Zhongyi, the 2017 Women's World Chess champion, and her challenger Ju Wenjun to determine the new women's world chess champion. Ju Wenjun qualified by winning the FIDE Women's Grand Prix 2015–16.

Tan Zhongyi is a Chinese chess player who holds the title of grandmaster (GM). She is a former Women's World Champion, winning the 2017 knockout edition of the world championship in Iran where she defeated Anna Muzychuk in the final. Tan is also a former Women's World Rapid Champion. She is the three-time reigning Chinese women's national champion, and is a five-time national champion overall with titles in 2015, 2020, 2021, and 2022.