|Full name||Carlos Alberto Dario de Oliveira|
|Date of birth||February 1, 1961|
|Place of birth||Jales, São Paulo, Brazil|
|Playing position||Right Back / Right Wingback|
|1978–1982||XV de Jaú|
|1996||XV de Jaú (assistant)|
|* Senior club appearances and goals counted for the domestic league only and correct as of May 21, 2008|
Carlos Alberto Dario de Oliveira, usually known as Alfinete, (born February 1, 1961) is a retired professional Brazilian footballer who played as a right back for several Campeonato Brasileiro Série A clubs.
Alfinete started his career playing for XV de Jaú, but after four years he moved to Corinthians, where, as a member of the Corinthians Democracy, scored 3 goals in 107 matches played for the club. He played for Grêmio from 1987 to 1991, winning the Copa do Brasil in 1989 and the Campeonato Gaúcho four times, returning to the Porto Alegre club in 1993. Alfinete won the Campeonato Mineiro in 1991 and the Copa CONMEBOL in 1992 while playing for Atlético Mineiro. In 1994, playing for Fluminense, he retired.
He started his managerial career in 1996, when he was hired as XV de Jaú's head coach, after being Cilinho's assistant manager. He managed several Goiás state clubs, such as Rioverdense, Itumbiara and Grêmio Anápolis.
Alfinete won the following honors during his playing career:
|Atlético Mineiro||Campeonato Mineiro||1991|
|Corinthians||Campeonato Paulista||1982, 1983|
|Grêmio||Campeonato Gaúcho||1987, 1988, 1989, 1990|
|Copa do Brasil||1989|
|Supercopa do Brasil||1990|
|Vila Nova||Campeonato Goiano||1993|
- Enciclopédia do Futebol Brasileiro Lance Volume 1. Rio de Janeiro: Aretê Editorial S/A. 2001. p. 23. ISBN 85-88651-01-7.
- "Alfinete" (in Portuguese). Site Oficial Milton Neves. Retrieved 2008-05-21.
- "Exclusivo! Campeão goiano define técnico para a Série C" (in Portuguese). Futebol Interior. Retrieved 2008-05-21.