Tadeu

Tadeu may refer to:


 * José Tadeu Carneiro Cardoso (born 1956), aka Mestre Camisa, Capoeira master who created the organization ABADÁ-Capoeira
 * Tadeu Hasdeu or Bogdan Petriceicu Hasdeu (1838–1907), Romanian writer and philologist
 * Tadeu Jesus Nogueira, Jr. (born 1981), Brazilian footballer commonly known as Juninho
 * Tadeu Jungle (born 1956), Brazilian multimedia artist
 * Tadeu (footballer, born 1986), full name José Tadeu Mouro Júnior, Brazilian football forward
 * Tadeu (footballer, born 1992), full name Tadeu Antônio Ferreira, Brazilian football goalkeeper
 * Ely Tadeu Bravin Rangel (born 1982), Brazilian football forward commonly known as Ely Thadeu
 * Tadeu Schmidt, host of Fantástico, a Brazilian weekly television newsmagazine
 * Gilmar Tadeu da Silva (born 1970), Brazilian football manager and former football player commonly known as Gil Paulista
 * Ygor Tadeu De Souza (born 1986), Brazilian striker who has recently played for Chengdu Blades in the China League One
 * Tarcisio Tadeu Spricigo, Brazilian Roman Catholic priest jailed for 14 years for sexual abuse of children
 * Eugenio Tadeu, Brazilian grappler, Vale Tudo and mixed martial arts fighter
 * Tadeu Terra (born 1986), Brazilian footballer who is currently without a club