Prosch is a German and North American last name which is either derived from the first name of Greek origin Ambrose or from a diminutive of any of several Slavic personal names with the first component Prosi- (from Proto-Slavic *prositi "to ask"), e.g. Prosimir or Prosislaw. Notable people with the surname include: Ferdinand Victor Alphons Prosch (1820–1885), Danish doctor, veterinarian and biologist Harry Prosch (1917–2005), American philosopher Jay Prosch (born 1992), American football player Kevin Prosch, American Christian musician Thomas Wickham Prosch (1850–1915), American journalist, newspaper proprietor and historian
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