| William Alves | |
| Fullname: | William Rocha Alves |
| Birth Date: | 7 May 1986 |
| Birth Place: | Campinas, Brazil |
| Height: | 1.92 m |
| Position: | Centre-back |
| Youthclubs1: | Palmeiras |
| Years1: | 2007 |
| Clubs1: | Portuguesa Santista |
| Years2: | 2007 |
| Clubs2: | Shizuoka |
| Years3: | 2008 |
| Clubs3: | Anapolina |
| Years4: | 2008 |
| Clubs4: | Tombense |
| Years5: | 2008 |
| Clubs5: | Slavija Novi Sad |
| Years6: | 2009–2012 |
| Clubs6: | Borac Čačak |
| Caps6: | 87 |
| Goals6: | 2 |
| Years7: | 2013 |
| Clubs7: | Tombense |
| Caps7: | 0 |
| Goals7: | 0 |
| Years8: | 2013–2015 |
| Clubs8: | Diósgyőr |
| Caps8: | 28 |
| Goals8: | 1 |
| Pcupdate: | 11 March 2018 |
William Rocha Alves (born 7 May 1986) is a Brazilian professional footballer who plays as a centre-back.
Born in Campinas, William Alves came through the youth system at Palmeiras. He made his senior debuts with Portuguesa Santista in 2007. Later that year, William Alves moved abroad to Japan to play for lower league club Shizuoka.
In January 2008, William Alves returned to his homeland and played for Anapolina and Tombense, before moving abroad again, this time to Serbia, joining lower league club Slavija Novi Sad. He later switched to Serbian SuperLiga side Borac Čačak in the 2009 winter transfer window. In early 2013, William Alves returned to his former club Tombense.
In the summer of 2013, William Alves signed with Hungarian side Diósgyőr. He spent two years at the club, winning the League Cup in his debut season.