| Welissa Gonzaga | |
| Fullname: | Welissa de Souza Gonzaga |
| Nickname: | Sassá |
| Nationality: | Brazilian |
| Birth Date: | 9 September 1982 |
| Birth Place: | Barbacena, Minas Gerais |
| Height: | 1.790NaN0 |
| Weight: | 760NaN0 |
| Spike: | 3000NaN0 |
| Block: | 2870NaN0 |
| Position: | Outside spiker / Libero |
| Nationalyears: | 2002–2015 |
Wélissa de Souza Gonzaga, (born 9 September 1982 in Barbacena), best known as Sassá, is a volleyball player from Brazil. With the national team, she won the gold medal at the 2008 Olympic Games in Beijing.
Vasco da Gama (2000–2001) Rexona-Ades (2001–2008) Finasa/Osasco (2008–2009) Sollys/Osasco (2009–2011) SESI-SP (2011–2013)
MKS Dąbrowa Górnicza (2013–2014) Praia Clube Uberlândia (2014–2015) Brasília Vôlei (2015–2016) Fluminense FC (2016–2019) Itajaí Vôlei (2020) Curitiba Vôlei (2020–2021) Moda Brusque (2021–2023)
Athletes Unlimited Volleyball (2023) Mackenzie Esporte Clube (2023–)