The Treves surname mostly likely comes from the place name Treves (Trier).
"Family which derived its name from the Prussian city of Treves, famous for its prominent men. No other family can boast such a continuous line of scholars as this one, branches of which have been known under the names Treves, Tribas, Dreifuss, Trefouse, and Drifzan. There exist, however, no means of tracing the connection of these various branches, which even as early as the fourteenth and fifteenth centuries were already scattered over Germany, Italy, southern France, Greece, Poland, and Russia."
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