| Sidão | |
| Fullname: | Sidnei Dos Santos Junior |
| Nickname: | Sidão |
| Birth Date: | July 9, 1982 |
| Birth Place: | São Caetano do Sul, Brazil |
| Position: | Middle blocker |
| Weight: | 900NaN0 |
| Spike: | 348 cm |
| Block: | 335 cm |
| Team: | SESI São Paulo |
| Currentnumber: | 5 |
| Nationalyears: | 2006–2016 |
| Updated: | July 21, 2014 |
| Years1: | 1997–2002 |
| Years2: | 2002–2004 |
| Years3: | 2004–2005 |
| Years4: | 2005–2006 |
| Years5: | 2006–2009 |
| Years6: | 2009–2014 |
| Years7: | 2014–2015 |
| Years8: | 2015–2017 |
| Years9: | 2017–2019 |
| Years10: | 2019– |
| Club1: | EC Banespa |
| Club2: | Super Vôlei Santo André |
| Club3: | Ulbra/Canoas |
| Club4: | Cimed Florianópolis |
| Club5: | Modena Volley |
| Club6: | SESI São Paulo |
| Club7: | Funvic Taubaté |
| Club8: | SESI São Paulo |
| Club9: | Corinthians/Guarulhos |
| Club10: | SESI São Paulo |
Sidão official name Sidnei Dos Santos Jr. (born 1982),[1] commonly known as Sidão, is a Brazilian former professional volleyball player who played for SESI São Paulo and was a member of the Brazilian national team. He competed at the 2012 Summer Olympics, where Brazil lost in the final. He also played with the national team at the 2010 FIVB Volleyball Men's World Championship in Italy.[2]