Crystal Chow Ching (Chinese: 周澄; 13 September 1986) is a former Hong Kong activist.

[1] She ran in the 2010 Hong Kong by-election as the candidate of Tertiary 2012 in support of the Five Constituencies Referendum.

Daughter of film director and screenwriter Ivy Ho, Chow was educated at the pro-Beijing Pui Kiu Middle School.

She rose to fame in the Five Constituencies Referendum movement launched by the League of Social Democrats (LSD) and the Civic Party.

She formed the Tertiary 2012 with other university students to prevent uncontested election as the pro-Beijing camp deemed the resignation-triggered by-election as "unconstitutional" referendum.