Maffei was a manufacturer of railway locomotives based in Munich, Germany.
Established in 1836, it prospered for nearly a century before going bankrupt in 1930 and becoming amalgamated with the firm of Krauss to form Krauss-Maffei.
Following another seventy years of prosperity Krauss-Maffei merged with Demag and Mannesmann in 1999, the resulting conglomerate in turn being sold to Siemens AG.
Maffei, as a Munich town councillor, was praised for the building of the Hotel Bayerischer Hof.
The Maffei mansion in Feldafing, by Lake Starnberg, today houses a museum and exhibitions.