| Thiago Martinelli | |
| Fullname: | Thiago Martinelli da Silva |
| Birth Date: | 14 January 1980 |
| Birth Place: | Jundiaí, Brazil |
| Currentclub: | Audax-SP |
| Position: | Central Defender |
| Youthyears1: | 1999–2000 |
| Years1: | 2000–2003 |
| Years2: | 2003–2007 |
| Years3: | 2007–2008 |
| Years4: | 2009 |
| Years5: | 2010 |
| Years6: | 2010 |
| Years7: | 2011 |
| Years8: | 2012– |
| Clubs6: | Vitória |
| Clubs7: | São Caetano |
| Clubs8: | Audax-SP |
| Caps2: | 83 |
| Caps3: | 1 |
| Caps4: | 41 |
| Caps5: | 4 |
| Caps6: | 11 |
| Caps7: | 20 |
| Goals2: | 4 |
| Goals3: | 0 |
| Goals4: | 2 |
| Goals5: | 0 |
| Goals6: | 0 |
| Goals7: | 1 |
| Pcupdate: | 10 January 2012 |
Thiago Martinelli da Silva (born January 14, 1980, in Jundiaí), is a Brazilian central defender. He last played for Audax-SP.