There are multiple origins and meanings for the name:
1. Chinese first name (王) meaning - "emperor, king, monarch; prince (the title of nobility)" or of (望) meaning - "hope; gaze, look"
2. Comes from the Persian word (ونگ) meaning - "poverty, misery, poorness"
3. Derived from Vietnamese word (vàng) meaning - "gold"
May also refer to Wang (feminine name).