Claudinei dos Santos Oliveira (born 29 September 1969), known as Claudinei Oliveira, is a Brazilian retired footballer who played as a goalkeeper, and the manager of Botafogo-SP.
Born in Santos, São Paulo, Claudinei started his professional career with Santos in 1989, but failed to make an appearance for the club. He subsequently represented Jaboticabal, Nacional de Uberaba, Mamoré, Araguari Atlético Clube, Central Brasileira Pinhalense (two stints), Caldense, Olímpia, Portuguesa Santista, São Bento, Remo, Tuna Luso, Nacional-SP and Ferroviária, retiring with the latter in 2003.
Oliveira began his managerial career as a coach at his first club Santos, joining the under-15 squad in 2009 and leading them to a Campeonato Paulista under-15 title. The following year, he was promoted to under-17s and won the Campeonato Paulista of the category. In 2011, Oliveira was assigned to the under-20s. He went on to win both Campeonato Paulista in 2012 and Copa São Paulo de Futebol Júnior in 2013; the latter came after a 29-year absence.