Bloch is a surname.

  1. Jewish (Ashkenazic): regional name for someone in Central Europe originating from Italy or France, from Polish "Włoch" meaning "Italian" (originally "stranger / of foreign stock"), ultimately derived – like a large number of names and words in various European languages – from the Germanic Walhaz.
  2. German and Swedish: Variant of Block
  3. Danish: from Blok, hence a nickname for a large lumpish person, or from German "Block"

List of people surnamed Bloch