| Bia Vaz | |
| Fullname: | Beatriz Vaz e Silva[1] |
| Birth Date: | 1985 10, df=yes |
| Birth Place: | Brazil |
| Height: | 1.67 m |
| Position: | Midfielder |
| Collegeyears1: | 2008–2009 |
| College1: | Southern Nazarene Crimson Storm |
| Years1: | 2004–2005 |
| Clubs1: | Santos |
| Years2: | 2006–2007 |
| Clubs2: | SABESP |
| Years3: | 2010–2012 |
| Clubs3: | Foz Cataratas |
| Years4: | 2013–2014 |
| Clubs4: | Ferroviária |
| Years5: | 2015 |
| Clubs5: | Boston Breakers |
| Caps5: | 10 |
| Goals5: | 0 |
| Years6: | 2015 |
| Clubs6: | São José |
| Caps6: | 5 |
| Goals6: | 0 |
| Years7: | 2016 |
| Clubs7: | Flamengo |
| Caps7: | 10 |
| Goals7: | 0 |
| Years8: | 2017 |
| Clubs8: | Audax |
| Caps8: | 13 |
| Goals8: | 0 |
| Nationalyears1: | 2013–2015 |
| Nationalteam1: | Brazil |
| Nationalcaps1: | 12 |
| Nationalgoals1: | 0 |
Beatriz Vaz e Silva (born 7 October 1985), commonly known as Bia or Bia Vaz, is a Brazilian soccer coach and former player. As a "volante" (English: defensive midfielder), she played for Brazilian clubs including Santos, Ferroviára, São José and Flamengo. She represented the Boston Breakers of the National Women's Soccer League (NWSL) and played for the Brazil national team.
She was waived by the Boston Breakers in October 2015.[2]
In 2017, while still playing for Audax, Bia Vaz was invited onto Vadão's national team coaching staff. She retained her position as an assistant coach when Pia Sundhage took over as Brazil's head coach in 2019.[3]