| Gílson Nunes | |
| Fullname: | Gílson Siqueira Nunes |
| Birth Date: | 12 June 1946 |
| Birth Place: | Rio de Janeiro (RJ), Brazil |
| Position: | Midfielder |
| Years1: | 1963 |
| Clubs1: | Bonsucesso |
| Years2: | 1963–1969 |
| Clubs2: | Fluminense |
| Years3: | 1970–1974 |
| Clubs3: | Vasco da Gama |
| Years4: | 1974–1978 |
| Clubs4: | America |
| Manageryears1: | 1979–1981 |
| Manageryears2: | 1981–1983 |
| Manageryears3: | 1983 |
| Managerclubs3: | Brazil Olympic |
| Manageryears4: | 1984 |
| Managerclubs4: | America |
| Manageryears5: | 1985–1987 |
| Managerclubs5: | Brazil U20 |
| Manageryears6: | 1989 |
| Manageryears7: | 1989–1990 |
| Managerclubs7: | Al Wasl |
| Manageryears8: | 1990–1991 |
| Managerclubs8: | Fluminense |
| Manageryears9: | 1991 |
| Managerclubs9: | Náutico |
| Manageryears10: | 1992 |
| Managerclubs10: | Bahia |
| Manageryears11: | 1993 |
| Managerclubs11: | São José |
| Manageryears12: | 1993 |
| Managerclubs12: | Sport |
| Manageryears13: | 1994 |
| Managerclubs13: | Náutico |
| Manageryears14: | 1995 |
| Managerclubs14: | Morocco |
| Manageryears15: | 1996 |
| Managerclubs15: | São José |
| Manageryears16: | 1997 |
| Managerclubs16: | Juventude |
| Manageryears17: | 1998 |
| Managerclubs17: | Goiás |
| Manageryears18: | 1998–1999 |
| Managerclubs18: | Botafogo |
| Manageryears19: | 2000 |
| Managerclubs19: | Costa Rica |
| Manageryears20: | 2002 |
| Managerclubs20: | Portuguesa |
| Manageryears21: | 2005–2007 |
| Managerclubs21: | Al-Riyadh |
| Manageryears22: | 2014 |
| Managerclubs22: | America |
Gílson Siqueira Nunes (born 12 June 1946) is a Brazilian football manager. He is known for his success with Brazil at youth level.[1]
As a coach, he won the FIFA World Youth Championship in 1985 with Brazil.
He was also briefly the head coach of the Morocco and Costa Rica national teams in 1995 and 2000 respectively.[2]