Óscar Rivas Viondi (born 27 March 2000) is a Spanish footballer who plays as a central defender for Portuguese club Vitória de Guimarães.
Born in Albacete, Castilla–La Mancha, Rivas was a Getafe CF youth graduate, after starting out at Atlético Madrid.
[2] Rivas made his senior debut on 25 August 2019, starting in a 2–3 home loss against AD Torrejón CF.
[3] He made his first-team debut on 15 December, starting in a 1–2 extra time away loss against Sporting de Gijón in the season's Copa del Rey.
[4] Rivas scored his first professional goal on 27 March 2022, netting his team's only in a 1–2 home loss against Real Valladolid.