Christy Yiu Kit-Ching (Chinese: 姚潔貞 born 20 February 1988) is a long-distance runner from Hong Kong.

She competed in the marathon event at the 2015 World Championships in Athletics in Beijing, China and the 2016 Olympic Games.

[1] Yiu finished 39th in the women's marathon at the 2016 Olympic Games in Rio de Janeiro, setting a new personal best and national record with a time of two hours 36 minutes and 11 seconds.

[2] In 2020, she competed in the women's half marathon at the 2020 World Athletics Half Marathon Championships held in Gdynia, Poland.

This biographical article relating to Hong Kong athletics is a stub.