Chang is the surname of a wizarding family. It is unknown if they are pure-blood, or have both magical and Muggle heritage, but Cho Chang married a Muggle, thus any of her children would be half-bloods. The Changs are presumably of Asian descent.
- Cho Chang — a former Ravenclaw student at Hogwarts School of Witchcraft and Wizardry and member of Dumbledore's Army
- Mr. Chang — Cho's father
- Madam Chang — Cho's mother; Ministry of Magic employee
Chang is a common Chinese family name that means "free" or "unhindered".