The 17, most of whom were military officers, will go on trial on charges of
The trial has been delayed on several occasions but is due to start in a Paris court in December.
Pinochet, who held power in Chile from 1973 to 1990, was implicated in the disappearance of the same four French nationals but died in December 2006 without ever facing trial.
The accused include General Manuel Contreras, former head of the Dina secret police, and Paul Schaeffer, who headed a community called Dignidad that the Chilean opposition said was used by Pinochet's secret police as a torture centre.
It is not clear if Schaeffer is still alive.
The four who disappeared are a former counsellor to leftist President Salvador Allende, who was overthrown by Pinochet in a 1973 coup, a priest and two members of the Revolutionary Left Movement (MIR).
The case alleges that Georges Klein, the counsellor, and a priest, Etienne Pesle, were taken to military camps in 1973.
Prosecutors say MIR member Alphonse Chanfreau was tortured at Dignidad, while Jean-Yves Claudet-Fernandez was abducted in Buenos Aires as part of a wider operation against Chilean opposition members involving other Latin American countries.
(Reporting by Thierry Leveque; Writing by Sudip Kar-Gupta)