| Tozo | |
| Fullname: | Mariel Everton Cosmo da Silva |
| Birth Date: | 15 August 1980 |
| Birth Place: | Palmares, Brazil |
| Height: | 1.80NaN0 |
| Position: | Defender Midfielder |
| Currentclub: | Santa Cruz |
| Clubnumber: | 5 |
| Years1: | 2004–2005 |
| Years2: | 2005–2006 |
| Years3: | 2006–2010 |
| Caps3: | 36 |
| Goals3: | 1 |
| Years4: | 2007–2009 |
| Clubs4: | → Hacettepe (loan) |
| Caps4: | 61 |
| Goals4: | 1 |
| Years5: | 2010–2011 |
| Caps5: | 14 |
| Goals5: | 0 |
| Years6: | 2012 |
| Caps6: | 3 |
| Goals6: | 0 |
| Years7: | 2012 |
| Caps7: | 0 |
| Goals7: | 0 |
| Years8: | 2013– |
| Caps8: | 8 |
| Goals8: | 0 |
| Pcupdate: | 20:43, 11 December 2010 (UTC) |
Mariel Everton Cosmo da Silva (born 15 August 1980 in Palmares, Pernambuco), commonly known as Tozo, was a Brazilian footballer who last played as a midfielder for Santa Cruz.