Gash Family History
Gash Surname Meaning
English (Lincolnshire): perhaps from Old French gache a term denoting a part of a door lock (see Gache).
Americanized form of German Gasch.
Americanized form of Polish Gasz and Sorbian Gaš or of their Germanized form Gasch.
Source: Dictionary of American Family Names 2nd edition, 2022