João Bosco de Freitas Mucci, known professionally as João Bosco (Portuguese pronunciation: [ʒuˈɐ̃w ˈbosku]) is a Brazilian singer-songwriter and guitarist. In the 1970s he established his reputation in música popular Brasileira (Portuguese: "Brazilian pop music") with lyricist Aldir Blanc.

Born on July 13, 1946, in Ponte Nova, Minas Gerais, Bosco's profession was engineering when he moved to Rio de Janeiro, where his songs were recorded by Elis Regina. In the introduction to his three-volume Songbook, Almir Chediak wrote, "Brilliant composer João Bosco's melodic and harmonic constructions are among the most auspicious in Brazilian music." Chapter Five of Masters of Contemporary Brazilian Song: MPB 1965-1985 by Charles A. Perrone is dedicated to the work of Bosco and Blanc.

His father was Lebanese.