Denílson de Oliveira (born 24 August 1977), known simply as Denílson, is a Brazilian retired footballer who played as a left winger.
In a 16-year professional career he played mainly with São Paulo and Real Betis; who made him the world's most expensive player in 1998.
He also appeared for teams in five other countries during his career.
Denílson gained more than 60 caps for Brazil, making his full debut before his 20th birthday and representing the nation in six international tournaments, including two World Cups (winning the 2002 edition).