João Costa
João Costa may refer to:

 João Costa, Piauí, Brazil
 João Costa (fencer) (1920–2010), Portuguese fencer
 João Costa (sport shooter) (born 1964), Portuguese sports shooter
 João Costa (footballer, born 1996), Portuguese footballer who played as a goalkeeper
 João Cruz Costa (1904–1978), a Brazilian philosopher
 João Marques da Costa (born 1972), Portuguese politician
 João Resende Costa (1910–2007), Brazilian Roman Catholic bishop

Costa, Joao