John Law Ma
- Title: John Law Ma
- Popularity: 1.788
- Known For: Directing
- Birthday: 1938-11-04
- Place of Birth:
- Homepage:
- Also Known As: Lo Mar, John Lomar, Law Chau-Woo, 羅馬, Lo Chau-Wu, Lo Ma, John Lo Mar, Mar Lo, Lo Chau-hu, Lo Chi-hu , Lo Hsiu-hu, Lo Chiu Hu, Ma Law, Lu Mar