Amadeu is a Catalan and Portuguese given name derived from the Latin name Amadeus. It may refer to:
People Amadeu Amaral (1875–1929), a Brazilian poet, folklorist, philologist and essayist Amadeu Altafaj (born 1968), a Spanish journalist Amadeu Cristello Nunes da Cunha (born 1966), an Angolan footballer Amadeu Fernandes da Silva Sobrinho (born 1990), a Brazilian-born Azerbaijani futsal player Amadeu Teixeira (1916–2017), a Brazilian footballer Amadeu Vives i Roig (1871–1932), a Spanish musical composer Estanislau Amadeu Kreutz (1928–2014), a Brazilian Catholic bishop Gésio Amadeu (1947–2020), a Brazilian actor José Amadeu dos Santos Mendes (born 1995), a Portugueses footballer
See also Amadeo Amedeo