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