„Maigret, as always, is given very little to work with but the story seems a little fuller – perhaps it’s only the caviar and champagne.“ Zitiert nach: Maigret and the Millionaires by Georges Simenon bei Kirkus Reviews vom 9. Oktober 1974.
„This is not one of the better Maigret books; it is a bit perfunctory and the solution is, for Simenon, altogether stagy.“ Zitiert nach: Newgate Calendar: Maigret and the Millionaires. In: The New York Times vom 24. November 1974.