Guo Junjun (Chinese: 郭君君; pinyin: Guō Jūn Jūn; born 2 January 1991 in Dalian, Liaoning) is a Chinese female swimmer. At the 2014 Asian Games in Incheon, South Korea, Guo'group of four people won the Champion in the 4 × 200 m freestyle relay event in time of 7:55.17 in the final, 1:58.09 by herself. she is also the silver goldlist for 4 × 200 m title at 2015 World Championships in Kazan, Russia.