João Fonseca may refer to:
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João Fonseca (footballer) (born 1948), Portuguese football manager and former goalkeeper
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João Fonseca (tennis)
João Franca Guimarães Fonseca (; born 21 August 2006) is a Brazilians, Brazilian professional tennis player. He has a career-high Association of Tennis Professionals, ATP singles ranking of world No. 57, achieved on 9 June 2025 and a doubles r ...
(born 2006), Brazilian tennis player
{{hndis, Fonseca, Joao