Martinich is a surname. Bearers include:
- Aloysius Martinich (born 1946), US philosopher
- Art Martinich, former US soccer player who earned caps in 1973
- Ivania Martinich (born 1995), Chilean tennis player
- Marcos Martinich (born 1996), Argentine professional footballer
See also
edit- Martinić, a likely related Croatian surname
- Martinovich
- Martinic (disambiguation)