Jia Yifan is a Chinese badminton player. She captured four gold medals at the World Championships in 2017, 2021, 2022, and 2023 World Championships. She also won two gold medals at the Asian Games in 2018 and 2022, as well as at the 2019 and 2022 Asian Championships. Jia was part of China winning team in the 2019, 2021, and 2023 Sudirman Cup, and also at the 2020 Uber Cup. Additionally, she also won silver medal at the 2020 Summer Olympics. She reached a career high of world number 1 in the women's doubles with Chen Qingchen in November 2017.

The BWF World Championships, formerly known as IBF World Championships, and also known as the World Badminton Championships, is a badminton tournament sanctioned by Badminton World Federation (BWF). The tournament is one of the most prestigious in badminton, offering the most ranking points, together with the Summer Olympics badminton tournaments which was introduced in 1992. The winners of this tournament are also crowned as "World Champions" of the sport, and are awarded a gold medal.