| Denílson | |
| Fullname: | Denílson Custódio Machado |
| Birth Date: | 28 March 1943 |
| Birth Place: | Campos dos Goytacazes–RJ, Brazil |
| Position: | Midfielder |
| Years1: | 1961–1963 |
| Clubs1: | Madureira |
| Years2: | 1964–1973 |
| Clubs2: | Fluminense |
| Years3: | 1973–1974 |
| Clubs3: | Rio Negro |
| Years4: | 1975 |
| Clubs4: | Vitória |
| Nationalyears1: | 1966–1968 |
| Nationalcaps1: | 9 |
| Nationalgoals1: | 1 |
| Manageryears1: | 1978–1977 |
| Managerclubs1: | Vitória |
| Manageryears2: | 1986 |
| Managerclubs2: | Goytacaz |
Denílson Custódio Machado (born 28 March 1943), best known as Denílson, is a Brazilian former footballer who played as a midfielder.
He played entire career (1962–1974) at Fluminense, and won four Rio de Janeiro State Championship (1964, 1969, 1971, 1973), and three Guanabara Rio Cup (1966, 1969, 1971).
At international level, he made 9 appearances for the Brazil national football team, scoring 1 goal, and participated at the 1966 FIFA World Cup, making two appearances against Bulgaria and Portugal.
He is known as the 'king of step-overs'.