Carlos Fonseca (disambiguation)

Carlos Fonseca (1936–1976) was a Nicaraguan politician, teacher and librarian who founded the Sandinista National Liberation Front.

Carlos Fonseca may also refer to:
 * Carlos Fonseca (football manager) (born 1981), Spanish football manager
 * Carlos Fonseca (footballer, born 1985), Portuguese football goalkeeper
 * Carlos Fonseca (footballer, born 1987), Portuguese footballer for FC Tobol
 * Carlos Fonseca (boxer) (born 1955), boxer from Brazil
 * Carlos Esteban Fonseca, Puerto Rican television actor