| Mércio | |
| Fullname: | Mércio José Santos da Silva |
| Birth Date: | 26 May 1980 |
| Birth Place: | Recife, Brazil |
| Position: | Defensive Midfielder |
| Currentclub: | Famalicão |
| Clubnumber: | 7 |
| Years1: | 2000–2001 |
| Years2: | 2001–2003 |
| Clubs2: | Rio Ave |
| Caps2: | 54 |
| Goals2: | 5 |
| Years3: | 2003–2008 |
| Clubs3: | Desportivo das Aves |
| Caps3: | 112 |
| Goals3: | 8 |
| Years4: | 2008–2010 |
| Clubs4: | Trofense |
| Caps4: | 13 |
| Goals4: | 0 |
| Years5: | 2010–2012 |
| Clubs5: | Olympiakos Nicosia |
| Caps5: | 63 |
| Goals5: | 4 |
| Years6: | 2013 |
| Clubs6: | AEK Larnaca |
| Caps6: | 13 |
| Goals6: | 0 |
| Years7: | 2013– |
| Clubs7: | Famalicão |
| Caps7: | 119 |
| Goals7: | 19 |
| Pcupdate: | 15 March 2017 |
Mércio José Santos da Silva or simply Mércio (born 26 May 1980) is a Brazilian football player who plays for Famalicão.[1]