| Intro | São toméan association football player |
| A.K.A. | William Barbosa |
| Is |
Athlete |
| From |
Sao Tomé and Príncipe |
| Type |
Sports |
| Gender | male |
| Birth | 18 December 1983, Guadalupe, São Tomé and Príncipe, Lobata District, São Tomé Province, São Tomé and Príncipe |
| Age: | 36 years |
| Star sign | Sagittarius |
William Cassandra Rosamonte Barbosa (born 18 December 1983), known as William Barbosa, is São Toméan footballer who plays as a defender for Portuguese club Oliveira do Bairro and the São Tomé and Príncipe football team.