Qi Hui (齐晖, born 13 January 1985 in Fuzhou, Fujian) is an Olympic and former world record holding breaststroke swimmer from China.

She won silver behind Japan's Masami Tanaka in the 200 breaststroke (2:28.44 to 2:28.71) at the 1998 Asian Games in Bangkok, where she was the youngest athlete in the Chinese delegation.

At the 1999 World Short Course Championships in Hong Kong, she placed 3rd behind Tanaka and South Africa's Olympic champion Penny Heyns in the 200 breaststroke (2:25.05).

Considered to be China's best hope for a swimming medal, in the 2000 Olympics in Sydney, Qi finished 0.01 second behind USA's Amanda Beard for 4th (2:25.35 to 2:25.36).

In the Olympics, Qi also entered the 100 breaststroke, but was disqualified in the final for an illegal underwater dolphin kick.

At the 2007 World Championships, after having switched to a new training approach, she performed poorly in her two individual medley races in Melbourne.