[2] Wong was born in Hong Kong, but his family emigrated to France when he was five years old.

Wong returned to Hong Kong after finishing his studies.

[2] His ancestors had migrated from China to Vietnam, and used the surname Huỳnh, the Vietnamese reading of the Chinese character pronounced Wong in Cantonese.

[3] His brother, François Wong, also took part in Mr. Hong Kong, and became a TVB artiste before becoming an accountant.

[4] Wong married his fiancé Peggy in France on 3 August 2012.