Marko Šimić or Marko Simic may refer to:
- Marko Šimić (skier), Slovenian nordic combined skier born 1982
- Marko Šimić (footballer, born 1985), Croatian football goalkeeper
- Marko Šimić (footballer, born 1988), Croatian football striker
- Marko Simić (born 1987), Montenegrin football defender