João Francisco Fonseca dos Santos (born 19 February 1948), known as Fonseca, is a retired Portuguese footballer who played as a goalkeeper.

Benfica

• Primeira Divisão: 1970–71, 1971–72
• Taça de Portugal: 1969–70, 1971–72

Varzim

• Segunda Divisão: 1975–76

Porto

• Primeira Divisão: 1977–78, 1978–79
• Supertaça Cândido de Oliveira: 1981

• João Fonseca at ForaDeJogo (archived)
• João Fonseca at BDFutbol
• João Fonseca at EU-Football.info
• João Fonseca national team profile at the Portuguese Football Federation (in Portuguese)