Wai Hoi-ying (also known as Wei Haiying, simplified Chinese: ???; traditional Chinese: ???, born January 5, 1971) is a female Chinese and Hong Kong association football player who competed in the 1996 Summer Olympics for China women's national football team.
She is the incumbent Sham Shui Po District (Nam Shan, Tai Hang Tung & Tai Hang Sai constituency) councillors in Hong Kong.In 1996 she won the silver medal with the Chinese team.
She played four matches including the final and scored two goals.