Antônio Dias dos Santos (June 7, 1948 in Vera Cruz, Bahia State, Brazil – December 8, 1999), best known as Toninho, was an association footballer in defender role.
In career (1968–1982) played for clubs São Cristovão-BA, Galícia, Fluminense, Flamengo, Bangu and in Saudi Arabia with Al-Ahli.
He won five Campeonato Carioca (1971, 1973, 1975, 1978, 1979) and one Campeonato Brasileiro Série A in 1980.
For the Brazil national football team he played 26 international matches and scored 3 goals from April 1976 to October 1979, without scoring goals, and participated at 1978 FIFA World Cup.