Goy Family History

French: from the Old French word goi (Latin gubia) denoting a type of bill hook or knife used by vine-growers or coopers, hence possibly a metonymic occupational name for a maker or user of such implements. English (of Norman origin): habitational name from any of various places in France named Gouy, for example in Aisne or Pas-de-Calais. Galician: probably a habitational name from Goy in Lugo province, Galicia. German: northwestern variant of Gau.

Source: Dictionary of American Family Names ©2013, Oxford University Press