| Willian Oliveira | |
| Fullname: | William da Silva Oliveira |
| Birth Date: | 31 May 1984 |
| Birth Place: | São Paulo, Brazil |
| Position: | Midfielder |
| Years1: | 2000–2001 |
| Years2: | 2002–2003 |
| Years3: | 2003–2007 |
| Years4: | 2007 |
| Years5: | 2009 |
| Clubs4: | Chicago Fire |
| Caps1: | 26 |
| Caps2: | 22 |
| Caps3: | 66 |
| Caps4: | 8 |
| Goals1: | 5 |
| Goals2: | 2 |
| Goals3: | 20 |
| Goals4: | 1 |
William da Silva Oliveira (born May 31, 1984 in São Paulo, Brazil) is a former Brazilian soccer midfielder.
Born in Brazil, Oliveira began playing with local sides União Bandeirante FC and Vitória Futebol Clube. He signed with Trinidadian club W Connection's youth system in 2003, and played for the club for four years.[1] After a brief trial period, Oliveira was signed to the Chicago Fire of Major League Soccer on May 24, 2007.[2] However, Oliveira was released before the end of the season.