Si-Ma Yin
- Title : Si-Ma Yin
- Popularity : 1.615
- Known For : Acting
- Birthday : 1963-03-15
- Place of Birth : Hong Kong, British Crown Colony [now China]
- Homepage :
- Also Known As : Michelle Si-Ma Yin, 司馬燕, Shut-Ma Yin, Michelle Sze Ma-Yin, Michelle Sima Yan, Yin Szema, Seema Yin, Michelle Szema, 司马燕