Neumark is a family name of Scandinavian or Germanic origin. The name can be an Americanized form of the Scandinavian name, Nymark, a common habitual name from farms named with "Ny-Mark" or "new field".
Neumark also derives from Germanic origin and relates to persons from the Neumark region in Brandenburg.
In addition, Neumark can be an Ashkenazi Jewish surname derived from "Nay-Mark" (Yiddish: "new market"). Naymark was a name adopted by merchants such as Aharon Naymark who was a famous fabrics merchant: his descendants today are famous jewelers.