Crystal is a feminine name that Chris appears to be obsessed with. It may refer to:
- Crystal Weston Chandler (sister), Chris's "dream sibling" in the Sonichu comic
- Crystal Weston Chandler (daughter), Chris's prophesied future offspring
- Cryzel Rosechu, one of the three individuals married to Chris, even though she was born in 2003, making her 15.
- Crystle, an character featured in Mario Kart 64 Lego Raceway Part 1.
- Chaotic Crystals, another name for the Sonichu Balls, also known as Sonichu Crystals or Chaotic Crystals